Kozuki Momonosuke

Kozuki Momonosuke is an inhabitant of Wano Country and the son of the late daimyo of the Kuri region and patriarch of the Kozuki Family, Kozuki Oden. He was born 28 years before the present day, but traveled 20 years forward in time when he was 8 years old. Later with the help of his retainer Shinobu and her ability, his body was aged 20 years, though he remains a child mentally.

He was first mentioned when Kin'emon told Sanji that he came to Punk Hazard to rescue his "son". His given name was revealed when the samurai was asking if the captive children in the Biscuits Room had seen him, and his clan name was revealed when Kin'emon spoke of his true heritage.

Appearance
Momonosuke's appearance matches the stereotype of samurai found in ancient Japan, with a topknot and the top of his head shaven. While his unshaven hair is black like his father's, the portions of his hair that are shaven are turquoise like his mother's and sister's. As a child, Momonosuke is quite short. Momonosuke's typical garb is a pink kimono with peach designs on it, matching his name ("momo" means "peach" in Japanese), as well as a pair of geta. During the Punk Hazard Arc, he also wore a red scarf and a purple obi.

After his body was aged into that of a 28-year-old adult, Momonosuke was shown to be much taller (with a 180 cm tall Shinobu reaching around his stomach/chest area) with muscular arms. According to Shinobu, he bears a great resemblance to a certain person.

Personality
Due to his upbringing as a samurai, Momonosuke has a prideful and stubborn personality, as he was unwilling to communicate with the other kidnapped children. He also refused to eat any of the food or candy they offered him. Ironically, this attitude is what prevented him from getting poisoned by NHC10. Despite his pride, he also cried when he thought Kin'emon had died.

Everyone, don't mind me!! That is what the enemy wants! I promise I will manage alone, so please strike down both Kaidou and Orochi, protect Wano! Despite his tender age, Momonosuke is extremely dedicated to the samurai code of Bushido such as benevolence, courage, righteousness, and honor. Having immense compassion, Momonosuke cares dearly for the people of Wano and his retainers as well as other strangers. After learning of Caesar's evil intentions to sacrifice his test subjects, he wanted to warn his fellow captive children about it despite the dangers as he stated it will be shame as a samurai to simply run away. Momonosuke also aided the Straw Hats in treating the brutalized mink citizens of Zou. Momonosuke has great courage and selflessness. When Kanjuro ruthlessly attacked the Kozuki samurais, Momonosuke tearfully pleaded Kanjuro to stop. When he was abducted by Kanjuro, Momonosuke pleaded all of the Kozuki allies to continue their raid instead of rescuing him, telling them to prioritize saving Wano Country from Kaidou and Orochi's tyranny over his own safety despite the imminent danger.

Momonosuke is proud of his family as he claims that he is the man who will become the Shogun of Wano Country. He also claims that he is not afraid of anything and even threw a fit when Luffy asked him if he is afraid of heights. However, he is terrified of Doflamingo after having witnessed his cruelty. Despite his pride and stubbornness, Momonosuke did not deny his fear of him. Momonosuke gained his acrophobia after being traumatized by Kaidou, who had held him by the throat, threatening to kill him by throwing him off the top of the Kuri Castle. Before that, he was completely fine with heights, having even traveled to and descended from Skypiea.

Momonosuke loves his parents dearly and bears immense hatred and resentment towards Kaidou for murdering them. Momonosuke was also utterly frustrated at his powerlessness for not being able to avenge his parents or protecting his retainers. His immaturity and emotional outbursts initially prevented him from assuming authority, but after being spurred on by Luffy, Momonosuke has begun learning to take charge and fulfill his role as the Kozuki Family's leader. Momonosuke is also very sharp for his age as despite desiring to reunite with his sister, he understands the danger of Orochi learning of her whereabouts and thus opted to search for Hiyori after Orochi's defeat.

Despite his pride, Momonosuke also has a humble and modest side as he willingly acknowledged his lack of strength and abilities to avenged his parents. Thus, Momonosuke became dedicated to trained relentlessly in order to be strong and overcome his weakness. He is also deeply impressed with Luffy for being able to convince the Udon prisoners to rise up and fight the Beast Pirates oppression, noted that he could never do the same, though was greatly enraged when Luffy agreed with harsh insults. When the Udon Prisoners bowed before him being elated for his safety, Momonosuke had already realized it was because they saw his father's image in him rather himself as a person. Having long realized his weakness and inferiority to his father Oden, Momonosuke also refused to accept his father's heirloom Ame no Habakiri due to believing he is still not capable enough to inherit it and thus asked Hitetsu to continue to hold on to it.



Despite his age, he seems quite interested in older women such as Robin and Nami, and has used a combination of fake innocence and flattery to get the women to treat him maternally, allowing him to get away with things for which grown men would be considered perverted. While it initially appears he really is just innocent, the look that he gives Kin'emon, Brook, and Sanji makes it clear that he knows what he is doing, clearly showing an extremely perverted nature on his part. His perverted nature is a trait that he inherited from his father who had influenced him while he was a toddler.

Since acquiring his Devil Fruit powers, he has a peculiar habit of transforming into his dragon form whenever he is afraid, such as when Doflamingo was approaching the Thousand Sunny or being presented his father's sword Ame no Habakiri

Parents
You can't see it all! That is how the world is, Momonosuke!

Momonosuke loves his parents and could barely speak of their deaths by Kaidou and the Shogun of Wano Country. He is extremely respectful of his father both as a samurai and the benevolent daimyo of Kuri to the point where he stopped the fight between Nekomamushi and Inuarashi in the name of his happiness. Momonosuke also held a strong inferiorty complex towards Oden as he admitted he lacked any of his father's strength and courage as he is only living as a shadow of his father, when Kanjuro mocked him. Oden also loved his son as he would encourage Momonosuke to travel overseas to learn more about the world as he had, and upon his death, bequeathed to Momonosuke one of his favourite swords, the Ame no Habakiri. After their deaths, Momonosuke formed an alliance with the Straw Hat Pirates and Heart Pirates in order to avenge them. When threatened with death by Kaidou, Momonosuke refused to lie about his heritage, and proudly proclaimed himself as his father's successor as the future Shogun of Wano. As he was about to die by Kaidou's hand, he cried partially elated he can reunite with his parents in the afterlife.

Kozuki Hiyori


As siblings, Momonosuke cares deeply for his younger sister. While Momonosuke suspects that his sister is alive, he said he could not meet her until after Orochi is overthrown or Hiyori could become a target. He was greatly relieved to hear from Zoro and Kawamatsu that his sister is still alive.

Momonosuke also respected Hiyori's decision to relinquish one of their father's swords, Enma, to Zoro. When he was about to be executed by Kaidou, Momonosuke's only regret was not being able reunite with his sister.

Kin'emon
As one of the retainers of the Kozuki Family, Kin'emon swore to protect Momonosuke with his life and pretended to be his father on their journey for the sake of his safety. When Momonosuke was taken by Caesar, he went after him, and even fought one of the Seven Warlords of the Sea in order to save him. Despite his samurai honor, after Kin'emon confirmed that the meal Sanji made on Punk Hazard was fine, he listened and joined the feast. Upon his arrival to Zou, the first thing Kin'emon wanted to do was to make sure that Momonosuke arrived there safely. When his true identity was revealed, Kin'emon was shown to carry Momonosuke several times, and even lift him in order to complete his alliance with Luffy, Law, and the Mink Tribe. Despite the father-son ruse, the two do genuinely care for each other almost like family and share an unshakeable bond of trust. Momonosuke even cried heavily when he thought Kin'emon had been killed by the Shinokuni poison gas. Momonosuke also likes to flaunt his success with women in front of Kin'emon and others, which causes his retainer to become bitter and jealous to the point of even speaking ill of his young lord.

Despite the two not being related, the Straw Hats noted that they look alike and share the same perverted traits.

Raizo
As retainers of the Kozuki Family, Raizo swore to protect Momonosuke with his life. Momonosuke demanded to see Raizo despite the hard climb of the Whale Tree.

Inuarashi and Nekomamushi
As retainers of the Kozuki Family, they swore to protect Momonosuke with their life. Despite their mutual antagonistic behavior, when Momonosuke told them to stop fighting, they immediately stop and went back to being friends, worked together, and reminisce about their past.

Ashura Doji
Ashura Doji followed Momonosuke's father Oden due to the enormous respect he had for the man. Originally, Ashura's loyalty extended to the rest of the Kozuki Family. However, ten years after waiting for Momonosuke to resurface, many of Ashura's comrades grew impatient and attacked Kaidou only to perish. This led Ashura to become very bitter for the family's absence, and he severed ties with them. As such, he turned down the rallying of a revolution against Orochi and Kaidou, and even refused to address Momonosuke with any honorifics, putting a facade of being loyal solely to Oden. After Yasuie's death, Ashura came about and rejoined the Nine Red Scabbards, aiding Momonosuke.

Ginko
Ginko was one of the children that was experimented on by Caesar Clown, and a fellow captive on Punk Hazard. She was the first person to talk to Momonosuke after he was taken by Caesar Clown's men, and tried to convince him to eat something. She witnessed him eating Vegapunk's Artificial Devil Fruit and transforming into a dragon, and showed concern for his whereabouts afterwards.

Monkey D. Luffy
When they first met in the garbage storage room of Caesar Clown's lab, the two began talking and tried to figure how to get out. Upon their arrival at the surface, Momonosuke was exhausted and Luffy carried him until he met Caesar and began their fight. Momonosuke was amazed by Luffy's strength after the latter defeated the mad scientist. When the Straw Hats and their companions arrived at Dressrosa, Luffy tried to convince Momonosuke to fly as a way to go around the island. However, this idea angered Momonosuke and the two began to fight with Luffy calling him weak and a crybaby. After Donquixote Doflamingo's attack on the Thousand Sunny, Luffy learned that Momonosuke was a target and ordered the crew to flee Dressrosa in order to protect him. On Zou, upon the revelation of Momonosuke's true identity, Luffy showed no regard for Momonosuke's title and another fight broke out. After the revelation of the fate of Momonosuke's parents, it was Luffy's words that cause him to act as the leader he claimed to be and to declare his wish of vengeance. Luffy was also the one to recognize Momonosuke's ability to communicate with Zunesha.

At the Prisoner Mines in Udon, Momonosuke was amazed of Luffy after seeing his ordeal, but Luffy only made Momonosuke angry by saying negative comments about him.

Nami and Robin
Due to his perverted personality, Momonosuke immediately connected with the women of the Straw Hat Pirates. During their journey to Dressrosa, he slept in their bed and bathed with them, much to the annoyances of Kin'emon, Sanji, and Brook.

Sanji and Brook
Due to his connection with the women of the Straw Hat Pirates, Momonosuke woke the jealousy of his "father", Sanji and Brook. Despite their anger, they still fought to keep him safe from the Donquixote Pirates and later the Beasts Pirates. At Onigashima, Sanji rescued Momonosuke from his execution and he was impressed at how Momonosuke declared his heritage instead of lying to save himself.

Tony Tony Chopper
While protecting the Thousand Sunny, Chopper did his best to keep Momonosuke happy. He agreed to be the food taster in Momonosuke's game and coerced Brook into playing along as well.

Roronoa Zoro
Due to their affinity for bushido, Momonosuke has mutual respect for Zoro and was deeply grateful to him for saving his sister. Zoro also gave Momonosuke some advice in training his swordsmanship including the old Kuri dialect Sunachi. Momonosuke also admired Zoro's strength and skills as a swordsman as he did not object to his sister's decision to give one of Oden's swords, Enma, to Zoro.

Caesar Clown
While on Punk Hazard, Momonosuke was able to get away from the guards into a secret room where he heard of Caesar's plans for the kidnapped kids.

Donquixote Doflamingo
The captain of the Donquixote Pirates and an ally of Kaidou, Doflamingo tried to capture Momonosuke but failed due to Trafalgar Law's interference. At some point in the past, Momonosuke witnessed Doflamingo's brutality, with the event leaving him traumatized. Momonosuke also did not hesitate to admit his fear of the pirate. He was also worried when Doflamingo nearly killed Sanji until the latter was saved by Law.

Giolla
Giolla, an officer of the Donquixote Pirates, attacked the Thousand Sunny and tried to capture Momonosuke. With the help of Nami, Chopper, and Brook, Momonosuke was saved from Giolla's power.

Kaidou
I want to bring down Kaidou!! Kaidou is the sworn enemy of my parents! Even Mother has been murdered!

Because of Kaidou's role in the execution of his father, Momonosuke vowed to exact his revenge upon him with Luffy's assistance. Kaidou had threatened to kill him personally, but upon finding Momonosuke to be an immature weakling compared to Oden, he opted to simply leave Momonosuke to die in the burning Kuri Castle.

When Kaidou first saw Momonosuke again after twenty years, he remained unimpressed upon seeing him after being brutally beaten by Kanjuro, and considered him a pathetic weakling compared to Oden. He also questioned Momonosuke whether he is truly Oden's son, as he did not inherit any of Oden's strength, which he thought highly of. Repeating the question he asked twenty years ago, Kaidou offered to spare Momonosuke if he denied about his heritage. When Momonosuke refused to lie, Kaidou prepared to execute him as a Kozuki in order to officially start his New Onigashima Project.

Kurozumi Orochi
For being in alliance with Kaidou and participating in the execution of his father, Kurozumi Orochi earned Momonosuke's hatred and anger. As one of the two last Kozuki heirs, Orochi himself deemed Momonosuke as a major threat to his rule due to knowing full well that Momonosuke had immense influence over the Kozuki allies that remain hidden in Wano. Orochi also intended to use Momonosuke as a hostage to stop the incoming Kozuki revolution.

When Kanjuro brought the child to him, Orochi taunted him for being helpless. Orochi held him on display to the Beasts Pirates and remarked on his survival before stating his plans to execute him. However, he never got the chance because Kaidou killed Orochi, as Momonosuke was solemn about this sight.

Jack
During Jack's second attack on Zou, Zunesha asked for permission to attack his fleet. Momonosuke, being the only one able to communicate with the elephant, ordered him to push Jack back.

Kurozumi Kanjuro
Kurozumi Kanjuro infiltrated the Kozuki Family per Orochi's orders in order to gather information on them, so as to eliminate the Kozuki bloodline and allow the Kurozumi to rise in power. Kanjuro played his role perfectly, having sworn to serve Momonosuke with his life during the charade. Momonosuke was shown to worry about Kanjuro on Dressrosa.

However, once Orochi gave the order to end the act and bring Momonosuke to Onigashima, Kanjuro took the young Kozuki captive while the remainder of the Nine Red Scabbards were lured out into the seas. After revealing his true nature, Kanjuro became merciless to the boy, going as far as to beat him unconscious for trying to escape. When delivering him to Orochi and Kaidou, Kanjuro insults Momonosuke by calling him a brat.

Zunesha
With the ability to hear the voice of all things, Momonosuke was able to hear Zunesha's cry for help during Jack's attack. They share a special connection, which enabled Momonosuke to share Zunesha's sight and to have the ability to make the elephant hear him as well. Under Momonosuke's order, Zunesha defeated Jack and his fleet instantly.

Abilities and Powers
As the heir of the Kozuki Family, Momonosuke has authority over its retainers, the Nine Red Scabbards. Due to this, he is one of the main leaders of the Ninja-Pirate-Mink-Samurai Alliance, which would not have formed without him requesting Luffy and Law's assistance as their equal. As two of his retainers are the mink rulers Inuarashi and Nekomamushi, Momonosuke also has sway over the Mink Tribe, a race of powerful warriors who are very loyal to his clan to the point that they would die for any member or retainer. As the leader of the Wano recruits of the Ninja-Pirate-Mink-Samurai Alliance, Momonosuke technically holds authority over said recruits. It was also mainly thanks to his presence that the majority of the Wano recruits from Udon joined the alliance in the first place. However, being still young, he barely uses said authority, entrusting most of it to his loyal retainer Kin'emon.

Voice of All Things
Like his father before him, Momonosuke has the ability to hear the Voice of All Things, He was able to communicate with the giant elephant Zunesha as well as see through its eyes and give it orders, which is the only way it can do anything but walk. Should Momonosuke order it to attack, he is in command of a powerful weapon capable of wiping out entire fleets in a single blow. He also has a sort of telepathic link with Luffy, as when the pirate was drowning in the ocean after getting beaten by Kaidou, he reassured Momonosuke that he will come back and defeat the emperor no matter what.

Physical Abilities
Although he has shown none of the inhuman strength his father had as a child, Momonosuke did manage to survive taking a brutal beating from Kanjuro; this surprised the samurai, who attributed it to Momonosuke having Oden's blood.

Swordsmanship
Momonosuke had learned basic swordsmanship from his father at very young age. Although Momonosuke has been seen in possession of swords, he has not been seen wielding them in an actual fight. Therefore, his level of skill in wielding them is unknown. After their return to Wano, he is seen practicing in his swordsmanship on different occasions, but he still did not see himself as worthy enough to wield Ame no Habakiri. Momonosuke is later seen training and receiving advice from Zoro during the three day period before the raid on Onigashima.

While being tied up by Kanjuro, Momonosuke was able to utilize a knife he found on the ground to cut himself free from his ropes. Although he proceeded to be easily overpowered by the master samurai, Momonosuke did manage to cut Kanjuro's palm with the knife during their scuffle.

Devil Fruit
Momonosuke ate Vegapunk's man-made copy of the Uo Uo no Mi, Model: Seiryu; created from Kaidou's Lineage Factor which was altered by the original Mythical Zoan-type Devil Fruit, but was deemed a failure by Vegapunk for unknown reasons. It transformed Momonosuke into a serpentine dragon which allows him to seemingly fly by producing Flame Clouds (焔雲) that he was able to grab onto and climb up that way.

However, as he has only eaten this fruit recently, he does not seem to have much control over it yet, and in fact, transformed unwillingly into his full animal form shortly after consuming the fruit. He did not know that he could produce and climb Flame Clouds, as he told Luffy he was stuck in the garbage dump when they met there.

When he was frightened by a hunger-induced hallucination, he unconsciously used his cloud ability to escape with Luffy clinging to him.

He also did not know he could switch forms until Luffy told him. It is also possible, though, that he has no conscious control over his power because the fruit was artificial and a failure. He showed the ability to revert back to his human form when he reunited with Kin'emon. However, Momonosuke is shown to switch forms from time to time. When Momonosuke transforms, he does it in a poof of yellow smoke or clouds, with the change being nearly instantaneous, which is unlike other Zoan users, who physically morph into their bestial forms.

When Momonosuke was aged into an adult, his dragon transformation was shown to be almost identical to Kaidou's in appearance, save for his size, horns and skin color. He likewise gained a massive increase in his strength and durability, as he could easily smash through walls by simply crashing into them and is able to hurt Kaidou, in his dragon form, with a bite. He gained better control over his ability to produce Flame Clouds, being able to use them to fly at high speed. However, his acrophobia still affects him, making it mentally difficult for him to properly fly, causing him to need to close his eyes so he will not be scared by how high he is.

Haki
Momonosuke possesses the ability to use Kenbunshoku Haki. Momonosuke displayed this ability at Onigashima during the Wano Country Arc, where he was able to tell how Luffy was performing against Kaidou despite being far away from him.

Weapons
When he was in his human form, before consuming his Devil Fruit, he was seen wearing a short sword that suited his size, although it is unknown how skilled he is at using it. After returning to Wano, Momonosuke was equipped with a Wakizashi and opted to continue using it in preparation for the upcoming revolution against the Beast Pirates due to believing he is still not worthy enough to wield his father's Meito, Ame no Habakiri.

Past
Momonosuke was born 28 years ago, to then-daimyo of the Kuri region of Wano and patriarch of the Kozuki Family, Kozuki Oden, and his wife, Kozuki Toki, during Oden's second year with the Whitebeard Pirates onboard the Moby Dick. He spent the first two years of his life sailing with the Whitebeard Pirates.

Around 26 years ago sometime after Kozuki Hiyori's birth, Oden encountered Gol D. Roger and decided to assist him with his final journey. Momonosuke then boarded the Oro Jackson with his parents and sister. Sometime after the Roger Pirates' visit to Fish-Man Island, Toki became ill. When the crew reached Wano Country, Momonosuke left the crew with his mother and sister and stayed behind at Wano.

After Toki recovered from her illness, she and her children became beloved figures of the Kuri region. Around half a year before Oden finished with his voyage, Kin'emon and some of his fellow retainers went to the Flower Capital to confront the tyrannical shogun Kurozumi Orochi. Meanwhile, a group of Beasts Pirates attacked Oden Castle. The pirates were driven away by Kawamatsu and Inuarashi, but Toki was injured while she was protecting Momonosuke. After Oden returned to Wano, the family welcomed him back. At Oden Castle, Oden was informed about Orochi's abuse of power, and Raizo was then ordered to take Momonosuke and Hiyori out of the room before Oden was told about the Beasts Pirates' attempted attack on his family.

After Oden failed to kill Orochi, Oden's family still loved him despite him acting like a fool and losing the respect of most of Wano's people for the next five years.

20 years ago while Oden and the Scabbards fought the Beasts Pirates in the Udon region, Momonosuke, Hiyori, and Toki stayed in Oden Castle while they were guarded by Shimotsuki Yasuie and his men. On the day of Oden's execution, Momonosuke asked his mother why his life was in danger. After Toki answered his question, Momonosuke started crying.

After Oden was executed in the Flower Capital, Momonosuke was with his sister and mother inside Oden Castle when it was set ablaze by the Beasts Pirates. Kaidou threatened Momonosuke but chose to leave him in the burning castle instead of killing him outright. When the retainers returned, Toki sent Momonosuke and the retainers 20 years into the future. After arriving in the future, they went around Wano Country and discovered how much it had changed over the years. However, they discovered allies they could still count on and began forming a plan to take back Wano Country. Momonosuke and his retainers also decided to travel to Zou to enlist the aid of the Mink Tribe, but when they left Wano Country, they were spotted by the Beasts Pirates.



While sailing to Zou, they ended up shipwrecked, in which they got separated from Raizo and drifted ashore to Dressrosa. While in the country, Momonosuke witnessed Donquixote Doflamingo's brutality as he tortured a gladiator for putting on an unsatisfying show at the colosseum. The samurai were later pursued by Doflamingo's men. Momonosuke hid himself in a ship and the ship set sail before Kin'emon could reach him.

Momonosuke was taken to Punk Hazard where he was placed in the Biscuits Room with the rest of the children. Despite the other children's kindness to him by offering him food and candy, he refused to take "another's charity" and told no one his name.



Sometime after sneaking out of the Biscuits Room, he wandered into Vegapunk's former office. There, he saw the scientist's man-made Devil Fruit inside of a glass display case. Due to his hunger, he smashed open the case and ate the fruit. Soon after, a Ginko found him inside the room and talked to him upon entering. Momonosuke told her that he needed to escape and that he had something he needed to accomplish. He listened to her as she talked until they heard the guards coming. She ran away to hide after telling Momonosuke to do the same.

By the time the guards got there, Momonosuke underwent an unconscious transformation into his dragon form. After escaping the guards, he saw his reflection and, upon realizing that he was the dragon, screamed in shock and continued to run away. Running past Caesar Clown's office, Momonosuke overheard the deranged scientist talking about the newest batch of children and how they were only good for about five years of experiments, after which they would die. He was going to warn the other children, but he thought to wait in the garbage dump where he ended up becoming trapped.

Punk Hazard Arc


Momonosuke later encountered Monkey D. Luffy after the pirate also fell into the garbage dump. Despite the pirate appearing to recognize his name, Momonosuke believed that Luffy must have been asking for someone else as they had never met before. He also told Luffy to stop drooling, as he seemed to want to eat him. He then told Luffy that he would rather eat him himself. His stomach growled and he admitted that he had been fasting for ten days.

After Momonosuke told him what was happening on Punk Hazard, a visibly angry Luffy asked Momonosuke to grab onto him as he planned on getting out of the garbage dump. He was relieved with what Luffy said and thought that it meant Luffy was not a pirate. However, Momonosuke suddenly had a hallucination involving Donquixote Doflamingo and started to fly. Luffy grabbed onto him as he flew upward.

After Luffy was informed of Caesar Clown's location, they went to Building R. Momonosuke then watched the confrontation between Luffy and Caesar, and felt angry once he saw the face of the man who condemned his captives to death with his experiments. He later expressed shock at Luffy's monstrous strength after observing his initial assault on the deranged scientist.

Caesar's subordinates then opened the air vents to allow the gas to flow in. After Caesar absorbed his weapon, Shinokuni, Luffy requested that Momonosuke look after Brownbeard before preparing to launch a devastating Gear Third attack. Once Caesar was out of the way, Momonosuke and Luffy then joined up with the other Straw Hat Pirates, the kidnapped children, and the G-5 Marines. After everyone boarded the rail car in the escape route, Momonosuke expressed sorrow when he saw that Kin'emon had been petrified by the poisonous H2S gas.



Sometime after Caesar's downfall, Kin'emon broke out of his shell and returned to his normal state. Momonosuke transformed back into his human form and was given clothes by Kin'emon after the two embraced each other. The two then ate Sanji's food, though Momonosuke was hesitant at first. Everyone then had a feast together. Momonosuke and Kin'emon boarded the Thousand Sunny with the Straw Hats and Trafalgar Law. Momonosuke listened as Law explained Doflamingo's connection to the underworld and the fact that his biggest client is Kaidou. The mention of Kaidou's name shocked Momonosuke, and he subconsciously turned into a dragon again, surprising Kin'emon.



Later that night, he had a bath with Nico Robin due to not having had one in days. As he was carried out by Robin while she was only in a towel and Momonosuke was snuggled in her breast, Brook, Sanji, and Kin'emon became enraged at him for using his innocent nature to get flattery from Robin and attempted to gang up on him until Nami beat them up for scaring him. He thanked Nami and called her a princess, which caused Nami to be flattered and state how cute Momonosuke is and hug him, allowing him to sleep with her and Robin. Momonosuke was then hugged in Nami's breasts and was seen grinning wickedly at the three, showing that he was doing this on purpose for pleasure. He slept in the women's bed with Nami's arm over his head as he snored. The next morning, everyone read in the newspaper about Doflamingo's resignation as a Warlord of the Sea and the alliance between Luffy and Law, as well as the alliance between Eustass Kid, Scratchmen Apoo, and Basil Hawkins.

Dressrosa Arc
After Law told Doflamingo to pick up Caesar at Green Bit, Momonosuke had a meal with Kin'emon and the crew. Momonosuke and the samurai told the crew about how they were shipwrecked and drifted to Dressrosa, as well as how Momonosuke was separated from the samurai. The Thousand Sunny then approached Dressrosa.

After disembarking, the group began the next phase of their operation. Luffy thought of using Momonosuke, in his dragon form, to fly. However, Momonosuke refused to do so as he remembered a person reaching for him and asking his name. When Luffy asked him if he is afraid of heights, the two got into a small fight until Kin'emon broke them up. The group then split into three teams and Momonosuke was put into the team to guard the Sunny. Momonosuke then prayed for Kanjuro's safety.



Momonosuke later played Shogun with Nami, Tony Tony Chopper, and Brook. When Brook started singing a song, they heard strange noises and a voice coming from the men's room. The voice belonged to Giolla of the Donquixote Pirates, who had invaded the ship along with several of her subordinates. Using her Devil Fruit power, she turned the men's room into abstract art and did the same to Nami, Chopper, Brook, and Momonosuke. Hoping to lure Giolla away from the ship, they escaped, but Giolla transformed the ship into art anyway, rendering it unable to sail. As Giolla attacked the group, Momonosuke told Brook that they were there for him. Then, when Law called the group, Momonosuke refused to admit that they were in trouble and stated that he was fine.

Giolla later trapped Chopper, Momonosuke, and Nami in a deadly painting that would slowly suffocate them in ten minutes. Brook acted nonchalant, seemingly caring more about the art that was being created than his friends' lives. The skeleton asked Giolla to turn his violin and cane back to normal so that he could add accompaniment to their death. Once Giolla complied, Brook then slashed her using 'Drawing Song Hitoyogiri', defeating her and causing her power to wear off, turning everyone back to normal.



Afterwards, the entire crew attacked Giolla to ensure she was completely incapacitated, something that left Momonosuke proud of his strength. Nami's group then started discussing about what to do with Giolla and wondered why Law was not handing Caesar back to Doflamingo. Giolla proudly told them the truth behind Doflamingo's status, leaving them shocked. As the Sunny approached Green Bit, Nami's group was horrified to see fighting fish attacking the ship. When they saw Doflamingo approaching, they cried in terror but were overjoyed and relieved when Sanji intercepted him.

When Sanji was overwhelmed and immobilized by Doflamingo's strings, Nami's group panicked. Doflamingo was about to deal a lethal blow to Sanji, but Law intervened by using Shambles and teleported Sanji, Caesar, and himself to the Thousand Sunny. Law then instructed Nami's group to head for Zou. Nami's group was reluctant to leave behind the other Straw Hats, but they complied when they realized that the ship was facing threats from both Doflamingo and Issho. After blocking an attack from Doflamingo, Law informed the Straw Hats about Doflamingo's Devil Fruit powers and instructed them to go to a place without clouds. Law then took Giolla hostage, giving Nami's group enough time to escape using Coup de Burst.

After sailing far away from Dressrosa, Momonosuke recounted the first time he saw Doflamingo which left a terrifying impression on him. When Roronoa Zoro finally made contact with Luffy, the group on the Sunny engaged in a conference call with both Luffy and Franky's group. After everyone was brought up to speed and learned about the true situation on Dressrosa, Sanji decided to sail back to Dressrosa to carry out their assault on Doflamingo.

Through the Den Den Mushi, the group on the Sunny heard the skirmish occurring at the Corrida Colosseum and was shocked to hear that an Admiral was also present in Dressrosa. The return trip was cut short by the appearance of the Big Mom Pirates, who were after Caesar Clown. Momonosuke was deemed by Nami to be one of the three "cards" at stake and she suggested to change course once again in order to keep him safe from Doflamingo. Luffy agreed and gave the order for the group on the Sunny to head to Zou.

Momonosuke and the others managed to barely elude the Big Mom Pirates and arrived at Zou the next day. After forcing Caesar to take them to the top of the giant elephant, they came across Sheepshead chasing after Tristan. After saving Tristan and running from Sheepshead, they found Zou's ruined city covered in poison gas and the devastated Mink Tribe.

During the conflict with the Beast Pirates left behind at Zou, Momonosuke, Nami, and Brook ran through unstable terrain when they were suddenly confronted by Sheepshead and his comrades. Right then, a rain eruption from the elephant's trunk occurred, causing them to be swept away by a flood. Momonosuke and Brook had to be saved by Nami due to being Devil Fruit users, and she carried them to a log. Sheepshead attacked the three of them, but Brook blocked him and Momonosuke cheered for Brook. They were then saved when Sanji arrived and kicked Sheepshead away. Later, Momonosuke heard Chopper calling out to them.

After Caesar neutralized the poison gas, Momonosuke's group then got to work on treating the injured minks, saving them from certain death.

Zou Arc


While the Straw Hats got along amiably with the minks, Momonosuke remained in his room, avoiding any contact with the minks.

When Kin'emon and Kanjuro finally arrived, Momonosuke reunited with them while they were going to the Mokomo Dukedom. Once they arrived at Kurau City, they were quickly intercepted by the Straw Hats, who tried desperately to keep them hidden. However, when they saw Inuarashi and Nekomamushi fighting with each other, the samurais revealed themselves, much to the Straw Hats' horror. Contrary to what the Straw Hats expected, the Mink Tribe welcomed them and revealed that Raizo is safe as well as having a friendship with Kin'emon's clan. While conversing with Kin'emon, Inuarashi and Nekomamushi began arguing again. Momonosuke stepped up and begged them to cease their quarreling. Not wanting to disappoint Momonosuke, whom they recognize as their lord, the two rulers complied. Kin'emon then revealed that he is not really Momonosuke's father and that his real father is the lord of the Kozuki Family. After Inuarashi and Nekomamushi called a truce, they took the samurais and the Straw Hats to a secret area in the Whale Forest where Raizo was hidden.

After Robin deciphered the red poneglyph that Raizo was tied to, Momonosuke allowed Nekomamushi to reveal the history of the Kozuki Family and their creation of the poneglyphs. However, Momonosuke's retainers explained that Momonosuke never inherited his family's knowledge of the poneglyphs and they welled up in tears as Kin'emon revealed that Kozuki Oden was executed by Kaidou to save them. Right after the samurais revealed Oden's will to open the Wano Country to the world and to defeat Kaidou and the shogun of Wano Kurozumi Orochi, Kin'emon asked Luffy to assist them. Luffy declined, saying that Momonosuke should make the request himself. Momonosuke then declared his will to fight Kaidou and protect those dear to him. While prostrating, Momonosuke humbly asked for Luffy's help. Seeing his resolve, Luffy accepted his request, forming the Ninja-Pirate-Mink-Samurai Alliance.



They later left the secret room and the samurai explained that they never went with Oden during his travels as leaving the borders of Wano is a crime. While discussing their plans to defeat Kaidou, the alliance decided to split up and meet up again at Wano Country. Law agreed to take the samurais back to Wano Country in his submarine. Right after they left the Whale Tree, they felt Zou shaking and heard Zunesha crying. As everything shook around them, Momonosuke saw Jack and his fleet through Zunesha's vision. He heard the elephant's voice, which told him to give it an order. Luffy then urged Momonosuke to give a command to Zunesha, saying that his voice should reach the elephant. Hearing this, Momonosuke ordered Zunesha to drive Jack away. After Jack's fleet was sunk, Momonosuke fell asleep.

After Zunesha calmed down, Momonosuke chose to stay on Zou to find out why only he can speak to Zunesha and to see if Zunesha knows anything about the Kozuki clan. Inuarashi promised to bring Momonosuke back to Wano when the time came. As the Sanji Retrieval Team departed from Zou, everyone, except for the Straw Hat members left behind, were shocked when Luffy jumped off Zunesha with his party.

Wano Country Arc
Momonosuke eventually went to Wano with Inuarashi, and he rejoined Kin'emon's group at the ruins of Oden Castle. He later reunited with Luffy, Nami, Sanji, Chopper, and Brook when they came to the ruins. There, the samurai told the Straw Hats their plan to raid Onigashima during the Fire Festival and depose Kaidou and Orochi. The group then saw Kaidou in his dragon form come to Kuri to hunt down Luffy and Law, and Kaidou obliterated the castle ruins with a blast of fire, but Shinobu saved everyone by sinking them into the ground.

A short time later, Momonosuke watched as Kin'emon and Inuarashi unsuccessfully tried to recruit Oden's former retainer Ashura Doji to their alliance. Later, Momonosuke was practicing his swordsmanship near Amigasa Village when Tama asked him about his sister, Hiyori. Momonosuke believed that Hiyori was still alive, but did not intend to reunite with her until the war was over.



That night, Momonosuke, Tama, Chopper, and Kikunojo were walking through the forest when they encountered an amnesiac Charlotte Linlin on Kuri Beach. They traveled to Okobore Town with Linlin the next morning, and after she had eaten some oshiruko, they told her she could find some more in Udon, where Luffy was imprisoned. They traveled to Udon on the back of a wanizame, and Momonosuke shouted "sunacchi" while practicing his swordsmanship after hearing Zoro tell him about it. Kikunojo told him not to use that word, saying it was unbecoming for someone of his status.



The group reached Udon the next day, and Linlin broke into the Prisoner Mine. Kikunojo and Chopper followed her, telling Momonosuke and Tama to wait outside. However, when the Beasts Pirates closed the main gate, Tama forced Momonosuke to sneak inside with her. They reunited with Luffy after he and their comrades successfully liberated the prison, and as Momonosuke bickered with Luffy, he was forced to appear in front of the liberated prisoners. The prisoners bowed before Momonosuke as their confidence in the Kozuki Family's return was restored.

Momonosuke returned to Amigasa Village with Kikunojo and Raizo in the next week, where the Straw Hats and Kozuki Family retainers met to discuss their strategy. There, Kawamatsu revealed that Hiyori was still alive, and Momonosuke thanked Zoro for saving her. Tenguyama Hitetsu presented Momonosuke with Ame no Habakiri, the blade Oden had passed down to him, but Momonosuke declined it for now. He then watched as Zoro received Oden's other blade, Enma, and was able to control it. With a day left before the raid, Momonosuke, Shinobu, and the remaining Red Scabbards set off for Tokage Port to make preparations.



However, when they came to Tokage Port, they found none of their allies there. The Scabbards prepared to set sail for Onigashima by themselves, and Momonosuke told them to stop, but they said this plan could not be rescheduled and encouraged him to survive while they did their best to repay their debt to Oden. However, Kanjuro, who was actually a spy for Orochi, had sent a drawing clone of himself onto the boat with the other Scabbards, allowing him to capture Momonosuke by surprise. After Denjiro and the alliance allies arrived, Kanjuro conjured a crane and flew away toward Onigashima with Momonosuke in tow. As Kanjuro mocked the legacy of his parents and his cowardice, Momonosuke ordered the alliance to press forward without worrying about him.

Kanjuro later took Momonosuke to Onigashima but they were lost due to Kanjuro being unfamiliar with Onigashima's complex layout. After Kanjuro struck down some Beasts Pirates since they still thought he was an enemy, Momonosuke spotted a nearby knife. Later, Momonosuke attempted to escape and cut Kanjuro's hand in the process. In response, Kanjuro brutally beat the boy to the point of unconsciousness. Momonosuke was eventually delivered to Orochi and Kaidou when Kanjuro finally reached them.



The boy was then tied up on a crucifix and placed on display at the Performance Floor inside the Skull Dome. After Kaidou explained his New Onigashima Project and disposed of Orochi, the Emperor asked Momonosuke for his name and offered to spare him if he denied being Oden's son. Momonosuke mustered up his courage and proudly declared his name and heritage. Before Kaidou could execute him, the Scabbards and Izou arrived and attacked Kaidou. After Kaidou and the Scabbards took their fight to the roof of the Skull Dome, Shinobu attempted to free Momonosuke, but King noticed her and hurled her away. However, Sanji was able to retrieve Momonosuke using his Raid Suit and flew away. While clashing with King in midair, Sanji threw Momonosuke to Shinobu, who then immediately flew off, taking Momonosuke with her.

After landing, Momonosuke and Shinobu encountered Yamato. However, when Yamato identified herself as Oden, Momonosuke and Shinobu ran away from her. The two were later attacked by Sasaki's platoon, but Yamato stepped in to protect them.

Franky (while in the General Franky) later arrived with Hatcha chasing him. While trying to attack Franky, Hatcha created a giant hole in the floor, and Yamato took this opportunity to escape with Momonosuke and Shinobu. They got out of the Skull Dome, but by that time, Kaidou had already lifted the entire island above sea level. They then hid out in a storeroom inside the Skull Dome. When Momonosuke asked about the discarded dragon statue in the room, Yamato revealed that Portgas D. Ace once came to Onigashima to kill Kaidou. He then heard about the meeting between Yamato and Ace, and he was shocked to learn that Yamato is Kaidou's daughter and that Ace was Luffy's brother and Gol D. Roger's son. Yamato then pulled out Oden's journal and declared that Luffy coming to Wano must have been an act of fate as he has the initial D. Momonosuke questioned what she meant. Yamato then gave Oden's journal to Momonosuke, explaining to him what it is, causing him to tear up. Yamato then went on to explain more about her relationship with Ace, as Momonosuke and Shinobu listened.

Later, Yamato caught a mouse Mary which Momonosuke had heard broadcasting a message. Yamato explained what the Marys are and stated that their location was compromised. Just then, a group of Beasts Pirates attempted to break into the storeroom. Yamato and Shinobu fought their way out while Momonosuke hid under Yamato's clothes. In the Right Brain Tower, Yamato and Shinobu continued moving as Yamato asked Momonosuke how he was doing. Momonosuke said that he felt disgusted with himself because everyone thought highly of him yet he saw himself as weak and foolish. Shinobu denied this and called him brave, but Momonosuke refuted this claim and transformed into his dragon form at the same time, which surprised the two. He managed to return to normal, saying he is much better at controlling it than he used to be, citing that he would transform whenever he was surprised or sad when he first met Luffy's crew. Yamato mentioned how similar his transformation is to Kaidou's and Momonosuke wished he could become a monster like Kaidou so he could be more useful. Yamato mentioned that she wanted to help Luffy fight Kaidou but Momonosuke said that Luffy was weakened yet somehow still fine. Shinobu expressed relief before asking him how he knew that.

The group took refuge in a crawlspace on the first floor and made contact with Kin'emon. Yamato then decided to leave Momonosuke and Shinobu to join the fighting and warned Momonosuke to avoid Marys, stating that she would act as a decoy with a dummy of Momonosuke. Before leaving, Yamato asked Momonosuke how Luffy was doing, and Momonosuke told her that his state was the same as before, but there were only two voices now, which caused Yamato to hurry. Momonosuke then began to read Oden's journal. While unknowingly being observed by a frog Mary, Momonosuke came to the conclusion through reading Oden's journal that he must not die and tells this to Shinobu. He then suddenly suffered a headache, which caused him to yell out in pain and loudly question whose voice he was hearing, worrying Shinobu. The voice belonged to Luffy, who told Momonosuke to tell everyone that he is going to defeat Kaidou.

Soon after, Kin'emon and Kikunojo reached the crawlspace and attempted to help Momonosuke. At the same time, Bao Huang began broadcasting a message through all of the Marys announcing Luffy's defeat, which came in through the frog Mary. Shinobu noticed this and tried to warn the others that they were being observed, but she was ignored as Momonosuke attempted to tell Kin'emon that they must give everyone Luffy's message. Just then, Kanjuro, who had secretly followed Kin'emon and Kikunojo, came into the crawlspace disguised as Oden. Momonosuke was pleasantly surprised to see who he believed was his father, but Kin'emon covered his eyes as Kikunojo declared that he was an imposter and went to attack Kanjuro. Kanjuro defeated Kikunojo and removed his disguise, and Momonosuke was distressed to see him. After Kin'emon went on to defeat Kanjuro, Kaidou suddenly burst into the crawlspace through the wall, which greatly surprised Momonosuke. Shinobu then grabbed Momonosuke and began to flee as Kin'emon is gravely wounded by Kaidou, causing Momonosuke to cry out his name.

Momonosuke continued to sob as he observed Kin'emon's defeat at the hands of Kaidou. As Shinobu continued to run, Momonosuke revealed that he had grabbed the frog Mary, and Shinobu asked him why he was holding it. He then used the Mary to tearily broadcast Luffy's message to the alliance. He stated his name and encouraged everyone to continue fighting, and then declared that Luffy is alive and going to win. After successfully delivering the message, Shinobu is cornered by Kaidou, who asked Momonosuke if he was satisfied. As Kaidou went in to attack them, Shinobu used her powers to destroy the wall they were up against and jumped off of the side of Onigashima with Momonosuke. Shinobu used her kite to safely land them on the Wano mainland.

After landing, Momonosuke cried about how high up they had been and called out Kin'emon and Kikunojo's names. Later, Momonosuke and Shinobu met up with Luffy and the Heart Pirates at Tokage Port. Momonosuke began to cry and started to tell Luffy about what had happened, but Luffy told him to hold it in until after Kaidou was defeated. Luffy then asked Momonosuke to turn into a dragon and fly him back up to Onigashima. Momonosuke begged Shinobu to use her power to age him into an adult so that he would be stronger and transform into a bigger dragon. Shinobu tried to dissuade Momonosuke by telling him that mentally he would still be a child, and turning him into an adult would be irreversible. Ultimately, Shinobu gave in to Momonosuke's request and aged him by twenty years, making him a twenty-eight year old. He then transformed into his dragon form, which had become the same size as Kaidou's, and agreed to take Luffy with him back to Onigashima.



However, Momonosuke hesitated to even lift his head due to his fear of heights, which Luffy scolded him for, starting an argument between the two. Momonosuke eventually managed to take flight, but he refused to open his eyes, which caused him and Luffy to crash into the Skull Dome, flying through several walls and floors and surprising everyone who saw them. When they reached their destination, a still-panicking Momonosuke finally opened his eyes when he heard that Luffy had spotted Kaidou and flew toward the Emperor, allowing Luffy to attack Kaidou simultaneously with Yamato. As Kaidou went into his dragon form, Momonosuke mustered the courage to reintroduce himself and once again declared himself to be the man who will become the shogun of Wano. Kaidou, who was both surprised and amused to see what happened to the son of Oden, declared that there is no room in this world for two dragons.

However still intimidated by Kaidou's presence, when Kaidou launched an attack, Momonosuke was nearly hit by it, only able to dodge it by swirling his body and letting the attack pass through. Before Luffy would start a second attack on Kaidou, he encouraged Momonosuke to use his fangs as a weapon against Kaidou, with Momonosuke then remembering his past ambush at Oden's castle and his near death by the Kaidou's hand, finally finding the courage to stand up to his name and bite Kaidou in his dragon form. Remembering the humiliation he endured thanks to Kaidou, Momonosuke proceeded to bite Kaidou, intensifying the power of his bite, even after Kaidou angrily shouted at him and would net let go of Kaidou, until Luffy stepped in to hit Kaidou.

After Luffy's and Kaidou's Haki clashed, Momonosuke was then the next target of Kaidou for his prior attack. Before Kaidou could hurt him though, Yamato stepped in and blocked Kaido's attack with her kanabo, although bloodied from their previous clash. Both were then send down the Rooftop by Luffy, who wanted to fight Kaidou 1v1. Although still afraid of heights, Momo then departed downwards, with no knowledge of using his Devil Fruits powers. However, Yamato explained the powers of Kaidou's Fruit and specialty of dragons to Momonosuke, which resulted in Momonosuke being capable of creating his own Flame Clouds and using them to move in the air. Soon afterwards, they were both nearly struck by falling debris form Onigashima, with Yamato blocking the falling rocks and both realizing Kaidou's powers were fading. Momonosuke would then attempt to halt Onigashima's flight towards the Flower Capital by pressinh his head against it, hoping his dragon form would have enough power to stop the island. When both were confronted with how close the island really was already to the Capital and when Yamato explained that the whole island was basically a big bomb due to massive stocks of armery and explosives hoarded by Kaidou on the island, Momonosuke panickly suggested informing Luffy, only with Yamato angrily hitting him and urging him that they both should find a way to stop its approach.

Before Yamato climbed up Onigashima, with the goal of finding and destroying all stocks of weaponry, she urged Momonosuke to create bigger and stronger flames as Kaidou's, as they were the only thing to stop Onigashima right now, which in result left Momonosuke in total panic as he was certain he could never create such powerful Flame Clouds as Kaidou's. However, as the island was getting closer to the capital, he managed to create more and more clouds.

Anime and Manga Differences
In Episode 611, Momonosuke, trying to escape from Caesar's men in the forbidden room, took flight without producing and using clouds. This scene was never shown in the manga.

Major Battles

 * Momonosuke, Nami, Brook, and Chopper vs. Giolla
 * Momonosuke, Luffy and Yamato vs. Kaidou

Playable Appearances

 * One Piece: Super Grand Battle! X
 * One Piece Treasure Cruise

Support Appearances

 * One Piece: Great Pirate Colosseum

Other Media

 * Momonosuke and Kin'emon accompanied the Straw Hat Pirates to Paradise Island, Madatascar Island, and Marriage Greenland in One Piece Premier Show 2013, 2014, and 2015 respectively.

Trivia

 * Oden gave him the name Momonosuke because it means "unrivaled".
 * When Momonosuke was born, the Whitebeard Pirates suggested names for him that included Tamago, Konbu, Chikuwa, and Tsukune. These names are all based on food, which would have fit with the food-based names of his father Oden and grandfather Sukiyaki.
 * Momonosuke is possibly based on Momotarō, a famous character in Japanese folklore. He, along with a monkey, a dog, and a pheasant, headed to Onigashima to defeat ogres. The three animals correspond with the aliases of former marine admirals or Tama's animal friends.
 * The design on Momonosuke's kimono may be a nod to the "momo" (桃) in his name. His coloration as a dragon may also be a nod towards his name since the Japanese word for pink is momo-iro (桃色). When Giolla used her powers on him, his head gains the shape of a peach.
 * His name and Kin'emon's come from Japanese actor Nakamura Kinnosuke. Oda is a fan of Kinnosuke.
 * When Momonosuke was first introduced in his human form, his introduction box looked like a normal one, unlike his fellow samurai who were introduced by scroll-shaped boxes. It was not until he was revealed to be the son of a daimyo when he received a scroll-shaped introduction box.
 * Momonosuke possesses some notable parallels to Yamato, with both of them being born 28 years ago and given the shogunate of Wano as their birthright. Interestingly, however, each of them share traits and goals moreso with the other's father rather than their own. Momonosuke has been out on the sea but wishes to rule over Wano, much like Kaidou, while Yamato has been trapped on Wano and wishes to leave and set sail with a pirate crew like Oden. Additionally, Momonosuke possesses the very same Devil Fruit transformation as Kaidou while Yamato desires to directly become Oden.
 * Both Momonosuke and Yamato ate their Devil Fruits purely out of hunger without even knowing what they were consuming.

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