User:Bcp321/Sandbox

The Straw Hat Reunion
After two years, Chopper returned to Sabaody Archipelago. He was following Fake Zoro, Fake Sanji, Fake Robin, and his own counterpart, believing them (excluding Fake Chopper) to be the real ones. After Fake Robin tried to lure Chopper to them with a cucumber, Chopper then witnessed the fake Robin getting kidnapped by some mysterious men. Later when he saw the Fake Straw Hat Crew, he was disappointed in his "captain" because they were not going to save "Robin", and he left crying and saying that he would save her himself.



While searching for "Robin", Chopper ran into Usopp and Nami, who were very happy to see him. After he was informed that the Straw Hats he encountered were fakes, he returned to the Thousand Sunny with Usopp and Nami. Franky then amazed Chopper and Usopp with his new upgrades. Chopper got excited wondering what Franky's new weapons are. He was pleasantly surprised when he heard from Rayleigh that Luffy was already in the archipelago.

After arriving at Grove #42, Chopper departed atop one of his enormous bird friends from Torino Kingdom to bring Luffy, Zoro, and Sanji back to the Thousand Sunny. With the assistance of the Straw Hats' new allies, Chopper and the rest of the crew descended into the ocean with their coated ship, finally resuming their adventure after two years.

Undersea Voyage


While sailing under the ocean, Chopper and the crew marveled at the site of the underwater world. He and Usopp also had to keep Luffy and Zoro from doing anything that might endanger the crew. He attended to Sanji after he received a massive nosebleed. Chopper along with the rest of the crew decided to have lunch, while Franky explained how their ship was in one piece after two years thanks to Bartholomew Kuma. As the ship descended even deeper, the crew marveled at how dark it had become. With their seacow, the Caribou Pirates soon caught up with the Straw Hats and prepared for battle. Caribou jumped onto the Thousand Sunny, but before his crew could follow, Momoo fled in fear from seeing Nami, Sanji and Luffy, leaving Caribou behind. The Straw Hats then tied up Caribou as he begged for mercy. He claimed that he was an unfortunate victim and not a pirate, and Chopper believed him until Usopp pointed out that he was lying.

Chopper then attended to Sanji as he experienced another massive nosebleed, suggesting that they try to rehabilitate Sanji. He listened as Nami, with the help of Brook, Franky, and Robin, explained about the Sea Currents, but quickly lost interest when Nami started talking about how salinity affected them.

He reacted with shock when he saw the Kraken. He then screamed in terror when he witnessed the Kraken destroying Caribou's ship. Even though the Monster Trio left the ship using Flutter Kick Coating to fight the Kraken, the sea monster aimed for the Thousand Sunny. Franky used his rocket launcher to repel one of the tentacles which amazed Chopper, Usopp, and Luffy.



Chopper then blocked another tentacle with his new and improved Guard Point. When Luffy hit the Kraken with Gomu Gomu no Elephant Gun, Chopper spotted a shark freed. Because they were not wearing life-lines, the Monster Trio got separated from the rest of the Straw Hats as the ship went down the underwater current.

When the crew reached the "Underworld of the Sea", Chopper immediately started to look for the missing Monster Trio along with Usopp and Brook. He then noticed the gargantuan size of a school of jellyfish that were floating around the ship. One of the jellyfish put one of its tentacles through the bubble coating. Chopper reached out to touch it but Robin stopped him, saying it was probably poisonous, much to Chopper's stunned surprise. When an even larger fish ate the jellyfish that he almost touched, it died as a result, confirming to Chopper that Robin's theory about the jellyfish probably being poisonous was correct. The reindeer commented on how scary and dark the Deep Sea is and how the fish in it cannot see too well.

When the crew realized Caribou was gone, Chopper thought one explanation was that he was thrown overboard while going through the downward current. Chopper was scared when Nami suggested that Caribou might still be hiding on the ship. After Franky trapped Caribou in the barrel, Chopper was the first to notice a sudden rise in temperature. He then moaned about how hot it is, saying he could not go on living this way, and how after waiting two years to see Luffy, Zoro, and Sanji, they disappeared. When the ship is about to be eaten by a gigantic angler fish, Chopper foams at the mouth in shock.

When an under-sea giant and the Flying Dutchman appeared, Chopper started to cry from sheer terror. He and Usopp were shocked by Brook's frightened reaction to the ghost ship. He was shocked to see Surume suddenly show up and knock out Wadatsumi, and overjoyed that the Monster Trio came back safely. When they were on board, Chopper tackled Luffy, telling him how scared he was.

When the underwater volcano started to erupt, Chopper panicked and was thrown back by the rest of the crew. Chopper exclaimed how hot it was when Nami said the water temperature was rising. When Sanji suffered a nosebleed while talking to Nami, Chopper remarked that it was a bad time to have a guilty conscience. When the crew reached the trench, Chopper noticed how the water was making steam from the heat. When the rocks fell into the trench, he marveled at Usopp's new attack. When a stray rock hit Surume, Chopper fell with the rest of the crew to the bottom of the sea.

Upon finally reaching Fish-Man Island, Sanji suffered another nosebleed thinking about mermaids. Chopper told him that it would be best if he did not see any actual mermaids, as doing so could kill him. He was impressed with Sanji's fiery resolve to die while seeing mermaids. When Hammond approached with his group of Sea Beasts, Chopper is shocked by their gargantuan size. Hammond gave the crew two options: join the New Fish-Man Pirates or die. Chopper and the rest of the crew then prepared to enter Fish-Man Island with a Coup de Burst.

Trouble in the Underwater Paradise
Luffy rejected Hammond's offer of joining the New Fish-Man Pirates and the fish-man prepared to attack. Franky activated Coup de Burst and the ship flew through the bubble surrounding Fish-Man Island. The ship then fell into a current and the crew got separated. Chopper, Luffy, Sanji, and Usopp were seen again in Camie's house meeting and getting reacquainted with Camie. Camie introduced them to some of her friends, the Medaka Mermaid Quintuplets, and took them to Mermaid Cove where they met more mermaids.

As Sanji swam with the mermaids, Luffy, Usopp, and Chopper relaxed. Chopper expressed his surprise that Sanji is back to his normal self, wondering if it was in the chef's nature. He also said that he is glad that Sanji was feeling better, as he had run out of Sanji's blood-type in his blood stock. Chopper states that Sanji has a rare blood-type and that he would not be able to treat any more nosebleeds. While Camie was telling Luffy that Jinbe is not present on Fish-Man Island, Chopper was shocked when a sea serpent appeared behind Usopp. When the Medaka Mermaid Quintuplets informed them that a royal gondola was approaching, Chopper, Luffy, and Usopp hid behind cover while Sanji was being covered by a mermaid. The three brothers of the Neptune House appeared, searching for the people who entered Fish-Man Island illegally. The mermaids denied that they had seen any intruders.

As the three brothers are leaving, Sanji suffered his worst nosebleed to date, forcing the Straw Hats to reveal themselves. As the Ammo Knights started advancing, Chopper pleaded for them to stop and help Sanji, asking if anyone could donate blood. He explained that if they did not get blood for Sanji, he would die in half an hour. Chopper asked if there is anyone who has a blood type of S RH-, going on to say that it is extremely rare. Camie told Chopper that fish-men and merfolk have the same blood as humans and it is transferable. She was about to explain further, but Hammond interrupted her, continuing her explanation. He explained that there has been a rule in place for a long time stating it is forbidden for humans and fish-men to share blood. He went on to say how Fisher Tiger supposedly died. After a gruesome battle, Fisher Tiger suffered a critical blood lost and could have been saved with a blood transfusion, but humans refused to help him. Hammond added that the rule was put in place by humans ages ago so that their bloodline would not mix with "monsters."

Hammond and his group attempted to capture the four Straw Hats, but Luffy repelled them. When a Sea Beast tried to attack Luffy, the Straw Hat captain subdued it with Haoshoku Haki, and Chopper and Usopp were shocked by how the monster acknowledged its loss without actually fighting. Camie stole the royal gondola and helped the four Straw Hats escape. After Usopp noticed Sanji's smirk and Chopper yelled at Sanji not to think about anything as every second matters, Camie then took the group to Coral Hill.

At the port town, Camie and the four pirates found shelter in Madam Shyarly's Mermaid Cafe. Madam Shyarly provided them a room where they could treat Sanji with blood donated by Splash and Splatter, two okama pirates found at a nearby bar. Chopper checked Luffy's blood, saw that Luffy got poisoned by the octopus merman, and was amazed that Luffy's body was able to fight against it. Chopper stayed with Sanji to ensure his recovery while Luffy, Usopp, and Camie went out to see Pappag.



When the Ammo Knights tried to arrest him and Sanji because of Madam Shyarly's premonition, the false accusation for mermaid kidnappings, and some of the Straw Hats taking over Ryugu Palace, Chopper used his new Kung Fu Point to fight them off, something that the soldiers and citizens thought was a weird animal. Having slightly recovered, Sanji told Chopper that he was going to see the Mermaid Princess, even if it would cost him his life. Chopper scolded him, telling him that if she was beautiful, Sanji might die instantly.

Sanji then defeated the rest of the Ammo Knights and expressed his disappointment of having to give up his chance of going to Ryugu Palace since they were trying to handcuff him. Chopper scolded Sanji for overdoing things, but Sanji snapped back saying what is done is done. Sanji then complimented him on his Kung Fu Point, and the reindeer happily danced while claiming not to be happy about that compliment. When they heard people screaming that a bloodied person was found and needed a doctor, Chopper turned to their direction and said that he is a doctor. Chopper and Sanji then found a wounded Hatchan, who warned them of an impending attack by the New Fish-Man Pirates.

As Chopper tended to Hatchan's wounds, he and Sanji were met with accusations from the Fish-Man Island citizens. While hovering above Coral Hill on top of Megalo, Luffy saw them and jumped down to meet them. Megalo, who was holding Princess Shirahoshi in his mouth, reached his limit and spat her out. While the Fish-Man Island citizens instantly concluded this as a Mermaid Princess kidnapping, Chopper yelled at Sanji not to turn around or else he might die from another nosebleed.

For the sake of his dream, Sanji decided to turn around even if it meant death, much to Chopper's horror. However, instead of getting a nosebleed, Sanji became petrified. Chopper said that it must have been the effects of the okama blood transfer. The citizens then tied up Chopper and the group, but were interrupted by the arrival of Vander Decken IX. After Luffy pummeled Decken into the ground, he checked on Sanji. Chopper informed him that Sanji had reverted to his normal state. The princess and the entire group then hopped on Megalo and flew away. After Luffy knocked back Wadatsumi, the entire group headed for the Sea Forest.



After reaching the Sea Forest, Chopper decided it was safe for him to take his time to treat Hatchan's wounds. The group then got acquainted with Franky, Den, and Jinbe. Chopper then told Franky that he was going to lower Hatchan down from Megalo, and he should be ready to grab him. After Hatchan was lowered, Chopper was surprised to see that Sanji is acting like his old usual self in front of Shirahoshi. Nami and Camie soon arrived and Chopper happily realized that Sanji is finally cured of his nosebleed tendencies. Chopper made medicine and listened to Jinbe as he explained the dark past of the fish-men and merfolk as well as the ideals of Queen Otohime and Fisher Tiger.

After Jinbe finished his story, Chopper and Nami had a friendly conversation with Princess Shirahoshi. When Hatchan started explaining Hody's plan, a large Visual Den Den Mushi appeared and the group watches a broadcast by Hody himself. Hody explained his plan of recreating the Ryugu Kingdom with himself as the ruler and then addressed the Straw Hat Pirates. Once he showed the imprisoned Zoro, Usopp, and Brook, Chopper was shocked. After Hody finished his speech, Luffy resolved to fight him. However, Jinbe told him not to. Chopper and Franky then correctly guessed that it was because they are humans. Chopper then watched Luffy and Jinbe trying to settle their dispute on how to deal with Hody.

Battle for Fish-Man Island


Chopper later appeared in Gyoncorde Plaza with the rest of the Straw Hats preparing to fight against the New Fish-Man Pirates. When Franky mentioned a new weapon in the Soldier Dock System, Chopper got on board along with Usopp, Nami, and Pappag. He kept asking Usopp if he could drive it. He then rode out on the Brachio Tank V, calling himself "Commander Chopper."

When the Brachio Tank IV fell in a pitfall created by Daruma, Chopper was thrown out with the others by Franky. He then went underground, using his new Horn Point and hindered Daruma in making more pitfalls. He launched him back to the surface and when arrived there, Luffy mistook his new form for a stag beetle. Chopper then faced off against Daruma. Everyone panicked when they saw Noah bearing down on Fish-Man Island.

Chopper was underground with Daruma when Usopp called out for him. Dosun got behind Usopp and tried to take him by surprise, but Chopper intervened using Horn Canon: Elf to push Dosun back. While Usopp prepared to fight Daruma, Chopper prepared to fight Dosun.



Later, Chopper commented on the new attack from General Franky, but was shocked to see that Franky was the attacker instead of the robot. Dosun tried to take advantage of this distraction, but Chopper transformed into his new Heavy Point and matched Dosun's T-Shot with a Heavy Gong. As Chopper recoiled from the force of the attack, Zoro commented on the new monstrous appearance of the transformation, which Chopper willingly accepted.

Later, Chopper rampaged in his Monster Point, much to Usopp's surprise. Usopp nervously told Chopper that the situation was not that serious for him to go like that. Then, Chopper turned to him and said that he was alright, meaning that Chopper was in fact still conscious.



After explaining to Usopp that he can use one Rumble Ball to stay in Monster Point for three minutes, he turned back to Dosun and easily knocked out the fish-man with his Kokutei Parmei attack. After all the leaders of the New Fish-Man Pirates had been defeated, the Straw Hats looked into the sky as Luffy tried to destroy Noah. When the Sea Kings appeared and stopped Noah from falling, saving the ship and the island at the same time, everyone on Fish-Man Island celebrated.

The After Battle Celebration and Departure
Moments later Shirahoshi brought Luffy to the plaza, dismayed to inform everyone that Luffy had lost a lot of blood. Chopper then asked the citizens if any of them had type F blood. He recalled the law prohibiting fish-man-human blood transfusions, but Jinbe stepped up and volunteered to donate blood, saying that he does not need to follow the law, since he is a pirate. Chopper carried out the procedure.

Luffy invited Jinbe to join the crew, but Jinbe declined, saying that he has some unfinished business. Chopper and the rest of the crew informed Jinbe he is welcome to join whenever he is ready.

Neptune invited the crew to a banquet and the crew partied at Ryugu Palace with the royal family. After partying for a while, Chopper was enjoying himself, when Jinbe recounted the conflict between Aokiji and Akainu. Chopper proudly stated he had already heard about it. He then expressed dismay at the statement that the Blackbeard Pirates are hunting strong Devil Fruit users. He believed that he would be a target, but Usopp pointed out that they would not need the Hito Hito no Mi. After the party ended, Chopper was talking with Usopp about the treasure stolen by Caribou that Luffy, Zoro, and Sanji went to collect. He suggested they help them search and was surprised about how high Caribou's bounty is. Chopper and the rest of the crew were later shocked that Luffy challenged Big Mom.

Afterwards, Chopper and the rest of the crew bid the citizens of Fish-Man Island farewell and promised (except Franky and Zoro) Shirahoshi to take her to the surface someday. The crew began to set sail with the Thousand Sunny and head towards the New World.

On their way to New World, Nami put Chopper to guard while she took a shower using her Shower Tempo. Chopper remarked how the Shower Tempo clouds look sweet and yummy like cotton candy and showed his concern if the crew would be alright with Nami not on the deck. After the crew reached the New World, Chopper commented on how the sea of New World looks red.

Arrival at Punk Hazard
Soon after entering the New World, the crew spotted an island surrounded by a sea of flames. The Straw Hats received a distress call from someone who seemed to be in trouble and mentioned something about a samurai. After Luffy decided to go rescue the person, Chopper expressed relief that he was not one of those chosen to accompany Luffy on his exploration mission, stating that he is not good with heat.



While Usopp, Robin, Luffy, and Zoro fought a dragon, Chopper and other Straw Hats that remained on the Thousand Sunny were knocked out by sleeping gas and all, except for Brook, were abducted. The captured Straw Hats later woke up in a cell and found parts of a samurai's still-living head. After putting the pieces of the head back together, the group got information from Kin'emon. Once they decided to break out, Franky used his Radical Beam to blast a hole in the wall, allowing the crew to escape. They ran down through the halls of the complex and stumbled upon a room filled with giant children. The children were excited to see them, but Sanji just wanted to escape the room before they are recaptured.

While their pursuers came after them, the children begged the pirates to help them escape. Nami could not ignore their cries and decided to help them. Sanji, Franky, and Chopper attacked the men in the gas masks. Nami and Chopper ran away with the children while Sanji and Franky held the enemy back. Since he was entrusted with protecting the children, Chopper was determined to live up to Sanji and Franky's expectations. As they ran, the children told Nami and Chopper about how they were abducted and that they were inflicted with some kind of disease. Nami was suspicious and told Chopper to investigate the children later. They then ran into a room with corpses frozen in the walls, floor, and ceiling.



Frightened, the group escaped and met up with Franky, Sanji, and Kin'emon, and they all ran out of the building and into the shocked view of the Marines of G-5, Smoker, Tashigi, and Law. They immediately turned around and tried to find another exit to avoid any combat. As they were running away, Law used his ability to rearrange the personalities of the Straw Hat Pirates, putting Chopper in Sanji's body and Franky in Chopper's body. After escaping, Chopper (in Sanji's body) helped keep Nami (in Franky's body) from hurting Sanji anymore than she can. The group reunited with Zoro, Luffy, Robin, Brook, and Usopp at the back side of the Punk Hazard facility. The Straw Hats tied up Brownbeard and brought each other up to speed on the current situation. After interrogating Brownbeard, they learned about the scientist Caesar Clown.

Kin'emon later left the group to find his torso and Sanji, Brook, and Zoro go out to find him. In the meantime, Chopper began to examine the children and the source of their sicknesses, while Franky (in Chopper's body) experimented with Chopper's abilities and made weird faces. Before long, several of the giant children started to feel pain, saying that they need the candy usually given to them in order to make the pain go away. However, Chopper stated that the candy contains a drug that the children became addicted to, and Luffy's group learned that the children had been experimented on. One of the giant children hit Luffy and the others went on a rampage, forcing Usopp to put them to sleep. Chopper expressed his sympathy towards the children, and Luffy's group decided to help the children and found Caesar. The group tied up the giant children so that they could not destroy anything else. Luffy, Usopp, Franky, and Robin left Chopper and Nami to watch the children while they headed to Caesar's lab. While they were gone, the Yeti Cool Brothers attacked and gunned down Brownbeard. By the time Luffy's group returned, they had kidnapped Nami.

Luffy and Franky decided to go after the brothers. Franky asked Chopper to give him some Rumble Balls. Chopper gave him one and advised him on how to use it. However, Franky immediately took one, transformed into Monster Point, and went on a rampage while chasing after Luffy.

Alliance with Law and a Plan to Defeat Caesar Clown


After the defeat of the Yeti Cool Brothers, Luffy, Franky, Nami, and Law returned to the hideout. Chopper and the rest were shocked that Luffy formed an alliance with Law. Law then returned Chopper to his body and Franky to his. Chopper scolded Luffy and Franky for causing damage to his body. When the Straw Hats insisted for Law to assist them in helping the children, Law asked to take Chopper with him to help find the medicine that was used on the children. Usopp tied Chopper to Law's hat, while the rest laughed at Law. Chopper was tied to his nodachi instead.

Law later warped both himself and Chopper to the back side of the facility to began their part of the plan. The two briefly discussed on how they are going to investigate the drugs. They were later seen inside, where Law managed to lead Monet away while Chopper (hiding inside Law's bag) is left in the room unnoticed. Chopper then left his hiding spot and started sneaking around in the facility.

He later found Luffy's group in Caesar's clutches. Before Caesar sent them outside to die by the poisonous gas cloud created by Smiley, a piece of paper was hurled at Chopper. Chopper read a note, which told him not to do anything. He later ran passed Caesar's location, planning to escape the facility. Chopper managed to acquire enough information of the drug and even got a sedative. As he ran through the hallway, Monet noticed him.

Chopper later met up with Mocha and explained to her about Caesar's deception and using the kids for his experiments and how if Caesar continued to use them, the children would die before they reach adulthood. Mocha remembered her friends promising to each other that when they get older, they would reunite and go on an adventure. The gravity of the situation became clear to Mocha and Chopper promised that he and the rest of the Straw Hat Pirates would save her. While Mocha guarded the candy in the Biscuits Room, Chopper attempted the hold back the children. He later entered Monster Point and was fending off the children in Building B. However, Chopper was unable to fight without hurting the children and was beaten down. When the Rumble Ball wear off, the children ran past him and made their way to the Biscuits Room. At this point, Brook, Kin'emon, Zoro, Nami, Usopp, and Robin came to his aid. Chopper told them that he was trying to prevent the children from getting their candy with the aid of Mocha. The group quickly ran after the children to the Biscuits Room. Regardless of Robin's attempt to hinder them, they went after Mocha, who was holding a piece of candy. After Chopper told Mocha to run, Monet appeared and told Mocha not to keep the candy all to herself and that she should share the candy with the other children.



Chopper and Nami then tended to Robin, but she assured them that her wound was only a cut. Monet tried to attack them when they attempted to run after the children, but Zoro quickly blocked her. After getting hit by Nami's Heat Egg, Monet dove into the snow and stopped Nami, Chopper, and Robin from leaving by creating a wall to block their path. An enraged Monet suddenly ensnared Nami and Chopper and prepared to bite Chopper. Nami swiftly moved Chopper out of harm's way and Robin used her Hana Hana no Mi abilities to shatter Monet, saving Chopper and Nami from another attack. Zoro then cut down the snow barrier, allowing Robin, Nami, and Chopper to go after the children.

Chopper, Nami, and Robin then tried their best to keep the berserk children from catching up to Mocha. While Nami and Robin hinder them, Chopper sedated them one at a time. Despite their efforts,

Journey to Wano
After Sanji realized that he received a raid suit from Niji during the escape from Cacao Island, Chopper and Luffy begged him not to throw it away. Carrot received a newspaper and showed it to the group. They then saw that Sanji and Luffy received new bounties. Initially, the group misread Luffy's new bounty as 150,000,000. Brook later took a closer look at the poster and the group was then shocked to hear that Luffy's bounty actually increased to 1,500,000,000.

Infiltration in Wano Country
As the Thousand Sunny continued towards Wano Country, the group was informed of the Levely through a newspaper and Chopper was overjoyed to see Kureha on the newspaper. He even cut out parts of the newspaper to keep for himself. The group then encountered an unusual weather disturbance in their direction, followed by an octopus on their ship as well as a school of huge carp on their side. After a bumpy ride across a river, the ship climbed up a waterfall. Once they reached the top, they came across a whirlpool. Sanji carried Nami, Chopper, Carrot, and Brook away from the ship, but Luffy got dragged into the whirlpool along with the Sunny.

After Luffy got separated, the group searched for him, but they only found his Vivre Card. They later got in touch with Kin'emon and they reunited with Luffy at the ruins of Oden Castle. With Law, Momonosuke, and Kiku also present, Kin'emon explained how he and his group traveled through time to escape Orochi's attack twenty years ago. Chopper then listened as Kin'emon explained more about the past such as the story of Oden, the time of his execution, the rumor about Toki, and what Kin'emon's group did right after arriving at present time. Kin'emon then went over a plan to attack Onigashima, the island where Kaidou resided, in two weeks.



Kin'emon explained more about the Fire Festival and how the decisive battle would play out. He then gave the group specific tasks to do. He asked Chopper and Carrot to go with Kiku to Inuarashi's current location. After giving the group new clothes, he introduced them to Shinobu. When Kaidou arrived at Kuri, Law alerted the group. The group was surprised to see Kaidou and they learned that Luffy, Zoro, and Law were already exposed. Luffy rushed off to protect Okobore Town and Law chased after him and told the rest to remain unseen. After Kin'emon and Kiku left to rescue Tsuru, the rest at Oden Castle noticed Kaidou coming to their direction and tried to flee as Kaidou destroyed the castle with a fire breath. Shinobu saved the males of the group by using her Devil Fruit power to sink them into the ground while Sanji carried Carrot and Nami away. Kiku then returned and told them what happened to Luffy.

Chopper was next seen in Tama's house at Amigasa Village tending to Tama. Chopper assured her that Luffy has incredible recovery speed and his will would not be broken and that Raizo was planning on rescuing him.

An Unexpected Visitor and Raid at Udon
Chopper, Tama, Kiku, and Momonosuke went to Kuri Beach, where they found Big Mom lying unconscious. Chopper panicked upon seeing her, and when she woke up, Chopper was surprised that she lost her memories. On the following morning, Chopper's group took Big Mom to Okobore Town. Though Chopper was worried about Big Mom regaining her memories, Tama insisted on taking her to Udon. Chopper then told Big Mom that she could find more food in that region, making her eager to go there.

The group then traveled to Udon, with Big Mom having tamed a Wanizame to carry them there. On the way there, Big Mom soon started to get hungry, asking how far Udon was while hungrily eyeing Chopper, much to his discomfort. As Tama and Big Mom were talking about oshiruko, Chopper worried what would happen if Big Mom did not find any at Udon. After night fell, the group eventually arrived at Udon.

On the next day, Chopper's group entered the Prisoner Mines after Big Mom broke through the front gate. Kiku informed Chopper that Queen was in charge of the prison and told him to proceed with caution. As Chopper and Kiku were sneaking in, they witnessed Big Mom attacking Queen. Chopper and Kiku were amazed to see Big Mom overpowering Queen. They then became worried for Luffy when he invoked Big Mom's wrath by admitting he ate the oshiruko that Big Mom was looking for. Chopper and Kiku were shocked when Big Mom sent Luffy and Hyogoro flying into a wall.



After Queen left with a captured Big Mom, Kiku asked Chopper about rescuing her, but he had no intention of going after her and said that getting Luffy was more important. Chopper and Kiku then heard Kawamatsu's voice coming from a nearby cell. After Raizo freed Kawamatsu, Chopper joined up with Luffy and their allies. Chopper was surprised to learn that Kiku is actually a man. As Chopper and his allies fought against the Beasts Pirates, Chopper was angry that they used viruses as weapons. The group was then cornered by prisoners who were infected with the Mummy virus. Chopper was worried when Luffy made contact with the infected prisoners.

After the prison takeover, Chopper worked on treating Luffy's condition and reprimanded Luffy for his recklessness. He also threw Momonosuke out of the room. Chopper successfully developed a cure for the Mummy virus and treated Luffy and all those infected.

Raid On Onigashima
Two days before the raid on Onigashima, Chopper returned to Amigasa Village with Luffy and Tama. Chopper was also given a new armor by Tenguyama Hitetsu.

On the day of the Fire Festival, the Straw Hats sailed to Tokage Port on the Thousand Sunny to join the Scabbards and enter the battle with the Beasts Pirates.

While Kanjuro fled to Onigashima with Momonosuke in tow, the Straw Hats learned that Kanjuro was a spy working for Orochi. As the alliance was attacked by a Beasts Pirates ship with long ranged cannons, the Straw Hats were overjoyed to see Jinbe arriving and joining the battle. With Jinbe officially part of the crew, the Straw Hats proceeded to take over the port in front of Onigashima; however, Chopper, Nami and Usopp hid on the ship while the others fought. The crew then arrived at Onigashima with the rebels. After disembarking, Chopper received a Beasts Pirates disguise from Kin'emon.



As the Straw Hats made their way into Kaidou's stronghold, Chopper traveled in the Brachio Tank V. The group in the tank and Kin'emon's forces reached the Pleasure Hall owned by Black Maria. After Nami, Carrot, and Shinobu volunteered to go look for Momonosuke, Chopper was later spotted by Big Mom when she was looking out of a window from one of the nearby buildings. Chopper and Usopp fired a shot at Big Mom with the tank's cannon before fleeing from her. The two managed to get away from Big Mom with minor injuries and the Brachio Tank V intact.



Later upon hearing of Momonosuke's upcoming execution, the two decided to go and rescue him but accidentally enter the room with the Numbers. While still inside the tank, Chopper and Usopp were caught by Jaki, one of the Numbers, but they were later freed by Franky at the Live Stage, where upon exiting the tank, they rejoined the rest of the Straw Hats onstage.

After Queen entered the fray, Chopper and Robin were alarmed when Queen used Excite Bullets on the rebels. Chopper, Robin, and Brook soon found themselves besieged by those infected by the Ice Oni virus. When Queen tossed the antidote to Apoo, Chopper told Zoro to take the antidote from him. When Chopper began working on analyzing the virus' distribution factors, he was horrified to learn from Robin that he too had been infected when his right arm began to freeze. Just as Zoro defeated Apoo and gave Chopper the antidote, Chopper finished his analysis and told everyone that exposing the victims to heat could prevent the spread of the virus. He also promised to produce enough antibodies for everyone.

After Marco arrived, he used his flames to revert the effects of the Ice Oni, which also restored Chopper's arm back to normal. Once Tristan and Miyagi arrived, they began to work on mass-producing the antidote, while X Drake and the yakuza bosses volunteered to protect them as Queen ordered his men to steal back the antidote.



Later, Chopper managed to finish mass-producing the antidote, Chopperphage. In the nick of time, he saved the infected Hyogoro when Yatappe was about to kill him. Chopper put the antidote in Hyogoro's mouth and cured him. Miyagi and Tristan came in and distributed the antidote with a cannon, curing all the infected. Chopper then explained to Queen how he was able to mass-produce the cure. When Queen angrily asked why he bothered to cure his subordinates, Chopper said that viruses were not meant to be weaponized, as even the user would lose control. Queen refused to be lectured by Chopper and tried to kill him, but the Pleasures used themselves as shields for him. Marco took this opportunity to grab Queen by the neck, giving Chopper an opening to strike. Chopper thanked Marco and took a Rumble Ball, changing into his Monster Point form. He then struck Queen while also yelling to everyone present that he is not a "Tanuki", which they had been calling him constantly.

However, as the battle continued, even though he had extended the duration of the effect of Rumble Balls to 30 minutes, and despite landing several strong blows on Queen, it is clear that the Plague was just playing with the reindeer. Furthermore, Charlotte Perospero joined the battlefield in support of Queen, raining a shower of Candy arrows all over the battlefield, which worsened the situation for the Alliance. Chopper's motivation took a dip when the news about Luffy's defeat and apparent death was broadcasted via the Marys. At this point Queen came in for a fatal strike on the depressed reindeer, while Perospero unleashed another arrow rain. Suddenly Sanji appeared and kicked the Brachiosaurus zoan, sending Queen spinning which simultaneously knocked away the arrows as well as Peresporo with its gigantic body. Sanji praised Chopper for holding out against the All-Star before telling him to stop crying for Luffy, reminding the reindeers of all their captain's miracles. He then casually chucking the heavily wounded Zoro to Chopper for the doctor to attend to. When Momonosuke used the Marys to announce Luffy's message, Chopper was immensely relieved, now crying tears of joy. Chopper transformed into a new Babyjiji form due to the side effects of the improved Rumble Ball, which turned his body into an infant hybrid form, while he starts talking like an old man. Having learnt that Miyagi possessed a super recovery medicine that would instantly heal a person, he is quite surprised, though the goat Mink cautioned that there would be powerful side effects.

Chopper then observed as the Mink injected the shot into Zoro, a fact Chopper would later share with Sanji when Sanji advised Chopper to flee if the medicine should not work to which Chopper replied it was just taking longer due to Zoro's condition. Together with the two Minks, Chopper witnessed Zoro and Sanji engaging in fierce combat with King and Queen and after the duo split to fight their separate battles, was very nervous when he saw Queen being able to crush Sanji's bones with his Brachiojaurus technique, but was even more stunned when Sanji was able to walk away with a body full of broken bones, before mending said broken bones in a matter of moments. Chopper was again shocked when Sanji's face broke Queen's sword leaving Chopper surprised that Sanji survived this attack. Eventually, the side effects of the Rumble Ball would fade, turning Chopper back into his normal form. Chopper had, however, concerns about Zoro's well being, as he was worried that, if Zoro won his fight, the medicine he was given earlier would double the damage he would receive from his fight with King, worrying that Zoro might die from the fight and the medicine.

Unknown to him, Luffy lost his fight against Kaidou and when Kaidou descended to the castle declaring he killed Luffy, Chopper started to cry hearing these words. He was later in tears and in shock when he witnessed Luffy's gigantic arm descending from the ceiling and pulling Kaidou back to the rooftop. As the island was burning, Chopper reunited with Nami and told her that he can't find the rest of the crew with Nami replying that with the giant fire, they can't go anywhere. Chopper asked Zeus if he could use his rain to put out the fire, but Zeus responds that he would only get himself burned. Later, as Onigashima growed unstable, Chopper, alongside everyone else, tumbled throughout the Live Floor of the Skull Dome.

A New Dawn in Wano Country
After the Raid on Onigashima ended, Usopp brought the unconscious Kin'emon and Kikunojo, alongside Franky who brought Zoro to Chopper for treatment. Miyagi and Tristan reported to Chopper that several others needed his attention, which prompted Chopper to ask for help with.

One Piece Film: Red
Uta organized a concert on Elegia in order to realize her dream of performing for the whole world. Chopper was present during the concert.