Kurozumi Kanjuro, nicknamed "Evening Shower" Kanjuro, is a samurai from Wano and member of the Kurozumi Family. After losing his parents, he was instructed by Kurozumi Orochi to operate undercover within the Kozuki Family. Kanjuro became Kozuki Oden's retainer and one of the Nine Red Scabbards while secretly aiding Orochi in his rise to power and efforts to eliminate the Kozuki bloodline, by feeding him information.
He was born 54 years before the present day, but traveled 20 years forward in time when he was 34 years old.
Kanjuro's appearance matches the stereotype of a traditional Kabuki performer. He has bright long red hair down to the floor with the front hair sticking outward and down to his chest, with big lips and blush marks on his cheek in a similar manner to Bentham. He is rather tall, standing at 347 cm.
He wears a traditional samurai outfit with a ribbon in the middle and zori for footwear. On his back Kanjuro carries a large brush which he keeps in readiness for use with his powers.
|— Kurozumi Orochi about Kanjuro|
According to Orochi, due to Kanjuro being raised in the theatre, his main purpose in life is to act as someone else. Due to his parents dying during the persecution of his family, Kanjuro wishes to avenge them and then die. Kanjuro has thus played the role of a loyal retainer to the Kozuki Family so that he would eventually be killed with them.
In his role as a Kozuki retainer, Kanjuro seems to act quite caring, since he suggested that they leave the island and devised a plan to do so. Kanjuro can also be calm and level headed, as he reprimanded Shinobu for being too rash in resolving unexpected setbacks. However, there are times where he can act absent-minded, such as when he created a net for the citizens of Dressrosa to climb up the old King's Plateau, not knowing they were aiming to capture Usopp and King Riku. He also fooled around during the escalade of Zunesha's leg and failed to realize that Bariete was falling towards him, hitting Kin'emon and him and making them fall off the elephant.
He can act overzealous with his emotions at times. For instance, when he realized he put Usopp in danger, he stated he would cut open his own stomach as compensation. However, he quickly decided against such actions when Kin'emon told him not to.
Due to his complete loyalty to the Kurozumi Family, he did not develop any genuine attachment to the Kozuki Family despite all the moments they shared together. Once Orochi ordered him to drop the charade and bring Momonosuke to Onigashima, Kanjuro did so without hesitation, revealing his true identity to those who thought of him as a comrade. He did not show remorse for his actions, even though they caused turmoil to their alliance and emotional pain to the other Nine Red Scabbards, particularly Kin'emon, for betraying their trust and friendship. Upon revealing his true nature, Kanjuro showed to be merciless and sadistic. Before departing to Onigashima, he abducted Momonosuke and attacked the Kozuki samurais. He also taunted his former friend Kawamatsu by threatening to kill Hiyori, and mocked his former allies' attempted revolution. When Momonosuke tried to escape, Kanjuro brutally beat him to the point of unconsciousness and casually handed him over to Orochi and Kaidou, even referring to the boy as a mere brat, thereby ungratefully disregarding the kindness and care Oden and the child had showed him. Even worse, while the Red Scabbards held back on him due to their lingering camaraderie, he showed neither reciprocation nor gratitude as he sadistically created a painted clone of Oden to launch a brutal psychological attack against them, while taunting them of killing Momonosuke despite his own wounds.
As a Kozuki retainer, Kanjuro referred to himself with soregashi (それがし?), an archaic personal pronoun used by samurai. After revealing his true loyalties, he switches to ore (おれ?), an informal personal pronoun commonly used by men.
Like most other characters in the series, he has a unique Laughter Style: "Ka, ka, ka"
Kanjuro loved his parents and was devastated when they were killed. Afterwards, he found his relatives Kurozumi Orochi, Higurashi, and Semimaru and gladly began working with them to avenge their family's persecution and put Orochi in power. He has served them unwaveringly for at least 21 years in his role as a spy, and Orochi considers him to be very trustworthy as he has supplied them with information about the Kozuki Family's activities and alerted him to their survival in the present day. When they met for the first time in decades, Kanjuro bowed to Orochi while the latter expressed great praise for Kanjuro for successfully abducting Momonosuke and was amused by his heartlessness towards the boy by beating him unconscious. Kanjuro wasted no time, alerting him of the invasion.
|— Kanjuro on his true motives and feelings for the Kozuki Family.|
Kanjuro is an enemy of the Kozuki Family due to his involvement in Orochi's plot against them. However, until revealing his plot prior to the raid on Onigashima, he was considered to be a trusted servant who was respected by his master Kozuki Oden and his fellow retainers. For much of his life, Kanjuro's intention was to die as a Kozuki, and so he played his role so well that he aided them in a battle against the Beasts Pirates and 20 years later, he helped Kin'emon at Dressrosa by helping him escape Doflamingo's guards. He was even willing to be executed with them due to his desire for death.
According to Kanjuro, he did not hate Oden and his fellow retainers and never meant to harm them. He only worked against them when commanded to by Orochi. He ultimately dropped his charade when they were heading to raid Onigashima and were about to be attacked by the Beasts Pirates' fleet. He then captured Oden's son Momonosuke to bring him to Onigashima as directed by Orochi. Kanjuro pointed out that his fellow retainers should have had a stronger suspicion of a spy in their midst, but did not really treat them with scorn or derision. Although the other retainers had wondered about the potential for a spy, they were utterly shocked and brought to tears by his betrayal, with Kin'emon quickly attempting to kill him in response. When he met them again, he stated he knew their tenacity well and wasted no time gloating about beating Momonosuke in front of them. This deplorable attitude caused Kikunojo to confront him and he gladly accepted her challenge.
Although Kanjuro stated he did not hate the Kozuki, he did not develop any true bonds with them due to his loyalty to the Kurozumi Family. Kanjuro did not hesitate to lead the family to various dangerous situations via his information leaks and despite his motive to play the "perfect" role as a Kozuki retainer, he kept many of his true talents hidden away from them until he revealed his true allegiance, which angered Kin'emon even more for his lack of honesty. Kanjuro also did not hesitate in abducting Momonosuke and bringing him to Onigashima, while claiming he will hunt down and kill Hiyori, infuriating Kawamatsu. As a hypocritical throwback of his earlier claim of not hating the family, he mocked Oden and Toki's deaths, derogatorily called Kawamatsu a 'fish-man' instead of his real name while flaunting his intention of killing Hiyori in front of him, and insulting Momonosuke's cowardice and weaknesses, while ignoring the boy's pleas to stop harming their allies. He also brutally beat Momonosuke until he was unconscious when he attempted to flee from him and called him a brat as he casually handed him to Orochi, showing just how much contempt he held towards the Kozuki line.
In spite of his treachery, Kanjuro's former allies still expressed sadness for him after his defeat. However, such sentiments did not go both ways, as while the Scabbards held back out of their camaraderie for him, Kanjuro went as far as using a painted creation of Oden against them, causing them severe psychological grief that ended with Ashura suffering from a brutal explosion, all the while taunting them with the threat of killing Momonosuke. This act of cruelty revitalized the Scabbards' hatred for Kanjuro.
However, even after Kanjuro attempted a second time to disguise as Oden, which led the Kiku to once again drop her guard as she could not bring herself to harm their savior despite knowing it was a fake, Kin'emon still shed tears when he was forced to strike down Kanjuro a second time.
Wano Country Citizens
Much like Orochi, Kanjuro also held incredible hatred towards the Wano citizens for unfairly persecuting the Kurozumi Family as his parents were also killed in their self-righteous persecution. Thus, Kanjuro had no qualms supporting Orochi in overthrowing the Kozuki shogunate, which led to Wano's decadence by Orochi's tyranny, and sabotaging the Kozuki revolution by providing Orochi information. He attempted to undermine Shimotsuki Yasuie's efforts to give the alliance a second chance and did not hesitate in expressing how Yasuie supposedly died for nothing in front of the Nine Red Scabbards, disregarding the kindness he received from the former daimyo. Kanjuro declared that all of the Kozuki samurai loyalists should have died twenty years ago, claiming that Toki's prophecy simply postponed their imminent deaths. Before he departed for Onigashima, Kanjuro ruthlessly attacked the Kozuki samurais along with their ships in a last ditch effort for revenge.
Abilities and Powers
Kanjuro has immense strength, able to easily carry around and use his giant ink brush without tiring, as well as clash with Kawamatsu, an extremely powerful fish-man in terms of physical power. While imbuing his brush with Haki, Kanjuro was able to help push back and significantly slow down the contraction speed of Doflamingo's Torikago, along with many other powerful combatants. During his journey through Onigashima, he took down several members of the Beasts Pirates with no effort. Even after being cut down twice with fatal injuries, Kanjuro was still able to continue attacking and drawing.
Kanjuro has some skills in making brushes, using the hair of people and corpses to make brushes for a living.
When operating with the Kozuki Family, Kanjuro pretended that he was very bad at drawing, producing only poorly-drawn, barely functional constructs. However, he is actually an extremely skilled artist, able to draw life-like creatures, including human beings. Despite having spent years acting like a mediocre artist, his true skills did not deteriorate, as he was able to produce perfect drawings once he ceased his act. The speed and precision of Kanjuro's artistry are also impressive, as he was able to draw a large crane in an instant.
Due to being raised in a theater troupe, Kanjuro is a consummate actor which is further improved by his personal lack of individuality as stated by Orochi. He was able to perfectly pose as a loyal retainer of the Kozuki Family for 21 years, fully adapting to his new identity and even faked genuine emotions such as sorrow at the death of Oden and later Yasuie despite not having any attachments to them in the first place. He also hid his true strength from them, giving them the facade of an amateur artist who could not make full use of his Devil Fruit's potential, in order to give himself a strategic advantage despite the risk he put them (himself included) through when his purposely poor drawings caused them to nearly fall off Zunesha. Although some events raised suspicions of a traitor in the family's midst, no family member or retainer ever suspected that Kanjuro was the spy until he told them.
Kanjuro ate the Fude Fude no Mi, a Paramecia-type Devil Fruit that allows him to create ink that he can use to draw pictures, as well as allowing him to manifest and control anything he draws. His three-dimensional drawings have the same abilities as the things they are depicting; a drawing of a bird is able to fly, and a drawing of food is edible (although, according to Kin'emon, it hurts his stomach). He can create ink from his long hair and draw with it, or channel his power through his giant ink brush.
Kanjuro can use this power to create a variety of constructs that he can use in various ways; such as by creating ladders to climb out of a deep pit, or by creating animals who abilities would prove helpful. His created animals are as capable as real ones, if not more, such as snakes with powerful constricting strength, or elegantly flying cranes. Furthermore, Kanjuro hid his powers' more potent usages from the Kozuki Family, such as generating ink from his hair to create a rain of hardened ink droplets.
Provided he knows the person whose effigy he is drawing, Kanjuro can make the drawing's voice identical to that of the person, which allowed him to create a perfect replica of Kozuki Oden that actually managed to fool most of the other Scabbards. When the Nine Red Scabbards sailed out to Onigashima to confront Kaidou, Kanjuro sent a perfectly drawn clone of himself with them, with none of them noticing until Kin'emon decapitated the drawing. Kanjuro could also combine his acting skills with his paintings to create psychological attacks, as he did so by animating a painting of Kozuki Oden and using his knowledge of the daimyo's personality to create a persuasive illusion of him. This deception managed to catch the Nine Red Scabbards off guard, and when the truth was discovered, they were psychologically wounded. The clone was also strapped with dynamite, creating a walking bomb that was strong enough to leave Ashura Doji burned and unmoving. Kanjuro could apply a layer of ink over himself to create a full-body disguise similar to the drawn effigy.
Kanjuro's power can also affect his own body, as he hid inside a wall as a drawing to avoid detection.
In order to utilize his Devil Fruit powers, Kanjuro keeps a giant ink brush with him. It has a katana hilt and guard, with a tassel tied to the pommel. He wields it in a manner similar to a sword, instead of how one would hold a brush. During his youth, Kanjuro used a sword to cut hair off from people and corpses in order to use them to make brushes.
- Further information: Haki
Kanjuro is able to use Busoshoku Haki, known in Wano as "Ryuo", which he used to reinforce his ink brush to help Zoro and Kin'emon push back the Birdcage. Kanjuro's Busoshoku Haki is strong enough to defend against the Birdcage's razor sharp threads that can easily slice cannon balls and large buildings.
Kanjuro was born and raised in a popular theatre troupe. However, his parents were killed onstage one day due to being members of the Kurozumi Family. Kanjuro drifted and ultimately found his relatives Kurozumi Orochi, Higurashi, and Semimaru. They revealed that they killed the murderers of Kanjuro's parents and needed his help. To ensure he could aid in Orochi's plot to overthrow the Kozuki Family and become the shogun, Orochi gave Kanjuro the Fude Fude no Mi to eat and instructed him to live as a Kozuki member up until his death. Since he sought death, Kanjuro readily agreed. At age 18, he was in Kibi. While stealing hair from either people or corpses to make brushes and sell them to make a living, Kanjuro attempted to steal Oden's, resulting in the Kozuki defeating him and Kanjuro following him. After Oden became daimyo of Kuri, Kanjuro became one of his retainers.
Six years later, after Inuarashi, Nekomamushi, and Kawamatsu joined Oden, they were running low on funds. Therefore, he and the other retainers attempted to steal money from Shimotsuki Yasuie, but they were caught. Instead of punishing them, Yasuie allowed them to take the money and encouraged them to use it to become better people for the sake of Oden and Wano Country. Following Yasuie's advice, they educated themselves and trained to become dignified warriors. 30 years ago, they visited the Flower Capital with Oden. Orochi would frequently ask for money from Oden, and when Oden obliged, Kanjuro would secretly give Orochi double the requested amount.
After meeting the Whitebeard Pirates, Oden and his retainers were having a feast with them. Oden said that he wanted to join the crew, but Kanjuro, Kin'emon, Raizo, and Denjiro spoke out against it. After the Whitebeard Pirates left Wano two weeks later, the retainers discovered Oden, Izou, Inuarashi, and Nekomamushi to be missing. During Oden's absence, Kanjuro and his fellow retainers protected Kuri in preparation for Oden's return. When Oden returned to Wano with the Roger Pirates, the retainers greeted him, but before they could say anymore, Kozuki Toki stopped them from convincing Oden to stay in Wano. Oden chose to continue his journey with Roger, making Kanjuro angry.
Around six months before Oden finished his voyage, the retainers were furious at Orochi for abusing his position as shogun. While Inuarashi and Kawamatsu stayed behind at Oden Castle, the other retainers marched to the Flower Capital to confront Orochi only to discover that a group of Beasts Pirates were in Kuri threatening Oden's family. When Oden returned to Wano after finishing his journey, the retainers (except Denjiro and Ashura Doji, who were elsewhere at the time) welcomed him back and told him about Wano's situation. Oden then ordered his retainers to protect his family and Kuri before charging to the capital by himself.
After Oden failed to kill Orochi, Kanjuro and the other retainers remained loyal to him for the next five years despite Oden acting like a fool and losing the respect of most of Wano's people. 20 years ago, Oden finally had enough and decided to take down Kaidou. The retainers eagerly followed him and marched with him to Onigashima. On the way to Onigashima, the group was confronted by Kaidou and his crew in the Udon region. Shinobu joined the samurai and in the ensuing battle, Kanjuro and Denjiro fought Queen. Unfortunately, the samurai were overwhelmed in the end. Oden and the Scabbards were then imprisoned in the Flower Capital and sentenced to be boiled alive in three days.
All ten prisoners were later brought to the execution site, at which point Oden made a deal with Kaidou. After Oden stepped into the pot of boiling oil, the retainers were about to join him, but Oden grabbed a plank and ordered them to stand on it as he held them over the pot. As Oden endured the hour, he explained to his retainers the reason Wano Country was isolated and requested them to open Wano's borders for him. Oden successfully survived the hour, but Orochi summoned a firing squad to execute Oden and his retainers. Oden once again told his retainers to open Wano's borders before throwing them far away from the pot. The Scabbards fled with tears as Oden met his demise.
As they were chased by an army of pursuers, Shinobu gave the Scabbards their weapons. On the way back to Oden Castle, Inuarashi and Nekomamushi were captured by the shogun's forces and Denjiro and Ashura split from the group to fight their enemies. By the time the rest of the group reached Oden Castle, it was set ablaze by Kaidou. The retainers went inside the castle and found Momonosuke as well as his sister and mother. Toki then sent Momonosuke, Kin'emon, Kanjuro, Raizo, and Kikunojo twenty years into the future. After arriving at the future, they went around Wano 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. Momonosuke, Kanjuro, Kin'emon, and Raizo decided to travel to Zou to seek aid from the Mink Tribe, but when they were leaving Wano, they were spotted by the Beasts Pirates; Kanjuro also informed Orochi that they were still around.
On the way to Zou, they ended up shipwrecked, in which they got separated from Raizo, and drifted ashore to Dressrosa. Once there, they were chased by Dressrosa's guards. Kanjuro chose to be apprehended to cover Kin'emon, allowing him to escape and pursue Momonosuke on a ship that was headed toward Punk Hazard.
When Kin'emon later arrived at the scrapheap, it was shown that Kanjuro was hiding in the walls; he was also able to sustain himself by using his Devil Fruit powers to make food. Kin'emon was happy to have found Kanjuro, who was also glad to see Kin'emon again. Kanjuro and Kin'emon prepared to leave on a bird Kanjuro drew and brought to life using his Devil Fruit ability, but the trapped citizens and Dressrosa soldiers begged to be taken along.
Kanjuro then used his ability to create ladders for the people to climb to the surface with. After leaving the scrap heap, Kanjuro and Kin'emon went to the old King's Plateau and met up with Usopp, Viola, and Riku Doldo III. Kanjuro painted a net to keep the citizens from reaching the top, but they ended up climbing it. Kanjuro offered to commit harakiri, but Kin'emon told him not to and Usopp beat them both with Kanjuro's brush.
Upon Usopp's request, Kanjuro created a doodle drawn by the sniper which was then converted into a special projectile that Usopp would use to defeat Sugar. When the Dressrosa citizens reached the top of the plateau, Kanjuro and others held them back long enough for Usopp to snipe at Sugar. Though Kanjuro and Kin'emon were tied up, Usopp was successful in making Sugar lose consciousness. The Dressrosa citizens then released the samurai and the others, realizing that they were merely playing into Donquixote Doflamingo's hands if they had continued. They were later joined by Issho, who decided to place his faith in Monkey D. Luffy and his allies.
After most of the Donquixote Pirates' officers were defeated, Kanjuro informed Usopp that Issho left and went to the city. Kanjuro, Kin'emon, and Usopp then saw Pica heading towards the old King's Plateau. When Pica prepared to crush everyone on the plateau, Kanjuro was awestruck when Roronoa Zoro destroyed the Pica statue and defeated Pica.
Later, as Doflamingo's Birdcage started shrinking he left the old King's Plateau with Kin'emon and Zoro. Kanjuro was informed by Zoro about his intention to stop the Birdcage. Once they reached the Birdcage, Kanjuro and Kin'emon were surprised that Zoro made an attempt to push back the Birdcage. The samurais tried to tell Zoro that it would be impossible, but Zoro angrily told them to help instead of doing nothing. The two samurai complied and they were soon aided by Issho. With everyone pushing, the cage stopped for a moment.
They kept pushing the Birdcage back just long enough for Luffy to deal one decisive blow to Doflamingo. Once Doflamingo had been defeated, they witnessed the collapse of the Birdcage. They rejoiced as Doflamingo's downfall was announced to Dressrosa.
Three days after Doflamingo's downfall, Kin'emon and Kanjuro traveled through the central streets, watching the citizens rebuild the country. They later appeared at Kyros' house, eating a meal with the Straw Hat Pirates. They prepared to leave when the Marines were mobilized to pursue Luffy and all those affiliated with him. They fled when the Marines were about to storm Kyros' house. After Luffy separated from the group to take care of unfinished business, Kanjuro's group went to the eastern port. While waiting for Luffy, they saw Issho approaching.
When Issho prepared to attack them with all the rubble from Dressrosa, they quickly fled to the escape ship. At that moment, Luffy arrived and attacked Issho. During the clash, Issho used his gravity ability to blow away Luffy, who was then caught by Hajrudin. They quickly fled across a bridge leading to a gigantic ship in the distance. Issho prepared to drop the rubble on them but was obstructed by the Dressrosa citizens who were pretending to chase after the pirates. They eventually reached Orlumbus' flagship, the Yonta Maria.
After the Straw Hat Grand Fleet was formed, they held a feast to celebrate their victory over Doflamingo. After the feast, each of the leading allies received a piece of Luffy's Vivre Card and parted ways. Bartolomeo then brought the Straw Hats, the samurais, and Law to his ship, the Going Luffy-senpai.
Four Emperors Saga
During a hail storm, Luffy's group learned that the Barto Club does not have a navigator, lacks experience in sailing, and usually call Gambia's grandmother who gives them useless advice. Therefore, the Straw Hats, the samurais, and Law needed to protect the ship. After one week of traversing through the dangers of the New World, the ship finally arrived at Zou. Kanjuro commented that he heard tales of a tribe that hates humans.
After finding the Thousand Sunny, the Barto Club bid Luffy's group farewell. Proceeding to search for Sanji's group, they climbed the giant elephant's left hind leg with a dragon that Kanjuro conjured. After the samurais explained that they were also searching for their ninja comrade, Raizo, the group saw something dropping towards them.
The thing that was falling towards them happened to be a monkey. While Kin'emon and Kanjuro were fooling around, the monkey hit them, causing them to fall off the dragon. Despite being separated from the group, the samurais assured the Straw Hats that they were alright and will catch up to them eventually.
Kanjuro later conjured a cat, which he, Kin'emon, and the monkey used to climb the elephant's leg. As they saw the eruption rain, they panicked as the cat would melt if it made contact with water. Having failed to reach Zou, Kin'emon and Kanjuro returned to the Thousand Sunny and decided to wait until the next day.
On the next morning, they finally reached Zou. When Kin'emon asked the monkey mink about Raizo, he quickly ran away. The samurais chased after him, not noticing a sleeping Franky, Nico Robin, and Brook.
On the way to the Mokomo Dukedom, Kanjuro and Kin'emon reunited with Momonosuke. When 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.
After Inuarashi and Nekomamushi called a truce for the sake of Momonosuke, whom they recognized as their lord, they took the samurais and the Straw Hats to a secret area in the Whale Forest where Raizo was hidden. After making their reacquaintance, Kanjuro, Kin'emon, and Raizo were saddened to see the state Zou was in after Jack's invasion. They then went back inside the whale tree once Robin finished deciphering the red poneglyph hidden there. After explaining the history of the Kozuki Family and their connection to the poneglyphs, the samurais and Raizo expressed sorrow in explaining Lord Oden's execution at the hands of Kaidou and the shogun of Wano Country Kurozumi Orochi.
The samurais and the two rulers of Zou revealed Oden's will to open the country of Wano to the world and to defeat Kaidou and the shogun of Wano Country. The samurais also explained that they needed allies which was the reason why they journeyed to Zou. They then formed an alliance with the Mink Tribe and the Straw Hats.
They later left the secret room and the samurais 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. Zou's shaking was because of Jack returning and assaulting the giant elephant, which Kanjuro had led him to. On Momonosuke's command, Zunesha retaliated and sank Jack's fleet. With the threat of Jack ended, everyone became calm again.
After Momonosuke decided to stay on Zou in order to communicate more with Zunesha, Kanjuro and his comrades prepared to go back to Wano with Law and Zoro accompanying them. As the Sanji Retrieval Team departed from Zou, everyone, except for the Straw Hat members left behind, was shocked when Luffy jumped off Zunesha with his party.
Wano Country Arc
Kanjuro and his group later infiltrated Wano Country, where they remained hidden until the alliance was ready to strike. While incognito, Kanjuro worked as a fishmonger. After Franky left his job, he informed Kanjuro of the bad news concerning the blueprints of Kaidou's fortress.
After the chaos at Orochi's palace, Kanjuro rendezvoused with Shinobu, Robin, Nami, and Brook at the Northern Graveyard in the Ringo region. During their meeting, Kanjuro was surprised at the large amount of information Robin was able to gather.
Sometime later, the Beasts Pirates found out about Kin'emon's secret message and the moon marks on the ankles of the Kozuki Family supporters. At Ebisu Town, Shinobu got into a heated argument with Law, suspecting that Law's captured crewmates revealed the meaning of Kin'emon's secret message. When Shinobu said that the captives should be disposed of, Kanjuro disagreed with her, saying that it was most important that they retain the allies they had made, as otherwise they would be unable to bring down Orochi and Kaidou. Tonoyasu then entered the house and recognized Shinobu and Kanjuro, much to their surprise. He then showed them a copy of the message and talked about the rumors swirling around the Flower Capital, wondering if the final battle was at hand. After telling Kanjuro and Shinobu that he would join them, Tonoyasu left the house. Kanjuro and Shinobu then explained to Sanji, Franky, and Robin that they did not actually know who Tonoyasu was, making them questioned on how he knew them.
When news of Tonoyasu's capture was revealed, Kanjuro and his group gathered to see him being shown on a broadcast. He finally recognized him as Yasuie, a former daimyo who supported Oden. Kanjuro and his group rushed to Rasetsu Town but only arrived after Yasuie was shot and executed. As he seemingly mourned Yasuie's death, Kanjuro regretted not recognizing him sooner and called his death a grave mistake. Kanjuro's group managed to retrieve Yasuie's body and returned to Ebisu Town. Kanjuro then promised the villagers that he would give Yasuie a burial in Kuri. He later joined a meeting with several key alliance members at Amigasa Village. Following this meeting, he reported to Orochi that the alliance's new meeting place was Tokage Port, that Oden's daughter Kozuki Hiyori was still alive, and the location of the Straw Hats' ship.
On the day for the raid on Onigashima, Kanjuro marched to the rebel meeting place with Momonosuke, Kin'emon, Kikunojo, Raizo, Shinobu, Inuarashi, Kawamatsu, and Ashura. The group eventually arrived at the meeting place, but found none of their ships and allies. In spite of this major setback, the Scabbards were still determined to go through with the raid, knowing that they would not get another chance. Kanjuro stayed behind on the coast in secret, sending a drawing clone onto the boat with the other retainers. As Kin'emon wondered about the possibility of a traitor among them, Kanjuro's clone then revealed that he was the traitor. The clone questioned why none of them had seriously suspected a traitor despite many of their maneuvers becoming compromised, and Kin'emon beheaded it, only for Kanjuro to reveal that his real body was on the coast and that he had captured Momonosuke and tied up Shinobu. As this was happening, the Scabbards' boat was confronted by three Beasts Pirates ships, but the ships were suddenly attacked by the Straw Hats, Heart Pirates, and Kid Pirates, leaving Kanjuro surprised as he had not heard of this.
Kanjuro was then surprised when Denjiro arrived and revealed himself. He was further shocked when Denjiro explained that the rebels gathered at the wharf of Habu instead of Tokage Port. Kanjuro became furious at Kin'emon when Denjiro assumed that he said the wrong port to mislead the spy. Considering that he had fulfilled his duty, Kanjuro then drew a crane on the ground and prepared to leave the scene with Momonosuke in tow. However, Kawamatsu swam back to the coast and attempted to stand in his way, resulting in a few blows between the two. Nevertheless, Kanjuro conjured the crane and escaped on its back, claiming that he would find Hiyori and dispose of her. As the Straw Hats determined to hinder him, he used his Ukiyo Yudachi Ezu technique in order to cause disarray among the alliance. He then mocked Oden and Toki's legacy as well as Momonosuke's cowardice before flying away to Onigashima.
After arriving at the island, Kanjuro got lost due to the island's complex layout and he had to strike down some Beasts Pirates who still thought he was an enemy. At some point, Momonosuke attempted to escape and cut Kanjuro's hand in the process. In response, Kanjuro brutally beat the boy to the point of unconsciousness. He eventually reached Orochi and Kaidou and delivered Momonosuke to them, also informing them that the plot to stop the Kozuki revolution had failed. Kanjuro then went and confronted his former comrades with an army at Onigashima's back entrance. After mocking them and explaining Momonosuke's escape attempt and how his execution was taking place, Kanjuro clashed with Kikunojo. He was then defeated and left bleeding on the ground, and Kin'emon solemnly dropped his hat upon him in passing.
Kanjuro survived the duel, but sustained grievous wounds that he knew would not give him much longer to live. Still intent on eradicating the Kozuki Clan, Kanjuro drew a perfect replica of Oden and sent it to trick and ambush the other Scabbards. Nearly all of them were fooled by the ruse, but Ashura Doji saw through it and attacked the Oden drawing, leading it to stab him before lighting explosives under its garment to take out all of Kanjuro's former comrades. Ashura managed to save the other Scabbards by forcing the Oden drawing out of the room and sacrificing himself in its large explosion, and Kanjuro cackled in satisfaction, calling his Oden trick the perfect finale to his "performance". Whilst commandeering the Oden drawing, Kanjuro also ran through the halls of Kaidou's fortress in search of Momonosuke.
Kanjuro arrived at the first floor crawlspace, where Momonosuke was with Shinobu, Kin'emon, and Kikunojo. Before entering, he shrouded himself in another Oden disguise in an attempt to pose as his old master again. Kikunojo was angered by this and charged at Kanjuro, but he maintained his act throughout, and ultimately caused Kiku to hesitate when he mentioned how Oden took in her and Izou as children. This allowed Kanjuro to pierce through Kiku's chest with his sword, and his Oden disguise then dissipated as he laughed triumphantly at having repaid her for the fatal wound she had given him. As Kin'emon caught Kiku and talked with her, Kanjuro readied his paintbrush to strike him, but Kin'emon then unsheathed his sword and struck Kanjuro down with a deep diagonal cut to the chest. As he fell to the ground with mortal wounds, Kanjuro laughed and noted how fitting it was that the man who had been his closest "onstage" comrade had been the one to strike him down.
Wanting to detonate the island's secret armory, Orochi called the severely wounded Kanjuro and coaxed him into creating one final painting and sending it to the basement; however, Orochi lied, telling Kanjuro that it was the location of the family's burial crypt. Kanjuro created Kazenbo and then passed out. The creature slowly moved through the castle and burned everybody and everything it touched along the way.
- Kozuki Oden, the Nine Red Scabbards, and Shinobu vs. Beasts Pirates
- Kanjuro vs. Doflamingo's guards
- Kanjuro vs. Kawamatsu
- Kanjuro and Beasts Pirates Gifters vs. The Nine Red Scabbards (minus Kanjuro) and Izou (unseen)
- Kanjuro vs. Kikunojo
- Kanjuro (Kozuki Oden drawing) vs. The Nine Red Scabbards (minus Kanjuro) and Izou
- Kanjuro vs. Kin'emon and Kikunojo
- In Kanjuro's first flashback appearance, he appeared to have his hair back in a ponytail. However, in the volume release of the chapter, Oda made a change to Kanjuro's shadowed appearance. In the revised chapter he seemed to have some type of helmet or hat on his head.
- When Kanjuro was seen for the first time, he resembled neither of these silhouettes, with the first silhouette more closely resembling Denjiro.
- Kanjuro and his role as a spy among the Scabbards is possibly inspired by Yamada Emosaku, a Japanese Christian, painter, and a prominent figure in the Shimabara Rebellion. Though a member of the Christian rebel group, he worked as an informant for the Tokugawa shogunate, betraying his fellow rebels.
- Kanjuro's epithet and ability can both be considered hints to his eventual betrayal.
- The epithet "Evening Shower" could be connected to sunshowers, which in Japanese folklore is known as Kitsune no Yomeiri which implies deception since rain during sunny weather was thought to be a fox's trickery.
- His ability is related to ink (墨 sumi?) which is usually black (黒 kuro?) and "black ink" can be read as kurozumi.
- Kanjuro's betrayal coincided somewhat with the massive rise in popularity of the video game Among Us, in which the crewmates of a ship must identify and eject an "impostor" among them before they are all killed. In June 2021, shortly after the episode adapting Kanjuro's betrayal was released, Toei's official Twitter account posted a tweet slightly referencing the game, and the game's own official Twitter replied to it.
- Kanjuro's favorite foods are lettuce rolls filled with sashimi, and cabbage rolls. As with the favorite foods of the rest of Oden's retainers, the latter is an ingredient in oden soup. His least favorite food is peaches (momo), befitting his dislike of Momonosuke.