Chapter Summaries

Sanji jumped into the poisonous lake to retrieve Kin'emon's body while Xi Yan and the others faced merging, seemingly unkillable slimes on shore. Kin'emon's upper body was attacked underwater, and the chapter left Sanji searching for it as Xi Yan watched for danger.

• Sanji carried Kin'emon to the lake and jumped into the poisonous water to retrieve his body, while Xi Yan watched the venom and Zoro reassured the others that Sanji could swim.
• The slimes fired venom at the group, merged into larger creatures, and released poisonous gas when Zoro cut them apart.
• Xi Yan could find no core to destroy and warned that the spreading venom left Sanji little time to return.
• Kin'emon cried out in pain as something attacked his upper body, but Xi Yan sensed that Sanji was unharmed and guessed that a shark had bitten Kin'emon.

Sanji rescued Kin'emon from the venomous water, and Xi Yan’s Wood Dragon brought them safely ashore. After Kin'emon reunited with his body, he used his Foxfire Style to clear a path through the slimes, then set out with Zoro and the others for the laboratory to rescue Momonosuke; the giant slime began transforming as they prepared to leave.

• Sanji knocked a shark off Kin'emon and recovered the last piece of his body, but the spreading venom trapped him until Xi Yan rescued him inside a Wood Dragon.
• Kin'emon reunited with his body, thanked Sanji, and made him a set of cotton clothes.
• Surrounded by giant slimes, the group watched Kin'emon use Foxfire Style to ignite and cut through them, clearing a path.
• Kin'emon headed toward the laboratory to rescue Momonosuke, and Zoro offered to accompany him in exchange for a spar after the rescue.
• Sanji and the others decided to go with Zoro and Kin'emon, while the giant slime across the river roared and began to transform.

Xi Yan and the others fled from a salamander-like slime that spat venom while Luffy and the Straw Hat crew confronted Caesar Clown at the Punk Hazard battlefield. Luffy grabbed Caesar, but Caesar trapped him in a toxic gas lasso and prepared to poison him.

• Xi Yan identified the transformed slime as a salamander, and the creature attacked the group with a glob of venom that they dodged before fleeing.
• Luffy and his companions encountered Caesar Clown, who revealed his plan to unleash the island-destroying weapon he called Death Country.
• Robin inferred that Caesar had caused the earlier chemical explosion and deceived the survivors by returning as their supposed savior.
• Luffy grabbed Caesar while Franky, Robin, and Perona fought off Caesar’s soldiers and centaur allies.
• Caesar dodged Luffy’s Gum-Gum Bell by dispersing his body, then wrapped Luffy’s head in a toxic gas lasso and threatened to poison him.

Luffy and Perona fought Caesar on Punk Hazard, surviving his poison and explosive attacks before Luffy defeated him. The group searched for a way to restrain the Logia user, while Perona considered asking Law or Xi Yan for help.

• Perona sent a Negative Ghost at Caesar, but Luffy inhaled Caesar’s poison and expelled it through his ears, revealing his resistance to poison from Magellan’s toxins.
• Perona’s Negative Ghost made Caesar collapse in despair, and Luffy punched him after Caesar tried to attack her.
• Caesar used his Aeration Soundboard to detonate gas and ordered SMILIs to bind Luffy, but Luffy escaped the explosions and Perona emerged unharmed.
• Luffy activated Second Gear, struck Caesar with Gum-Gum Jet Stamp, and knocked aside the centaurs who charged to protect their master.
• Luffy asked Franky and the others how they could restrain Caesar, and Perona suggested finding Sea Stone chains or asking Law or Xi Yan for help.

Caesar used the Gas-Gas Fruit to suffocate Luffy, Robin, Franky, Perona, and the G5 Branch Navy, then captured Perona with a Sea Stone Net. He ordered his men to take the pirates away as experimental subjects and dismissed the Marines, saying they would not live much longer.

• Franky went to search a wrecked warship for something to restrain Caesar while Perona blocked the G5 Branch Navy from taking him.
• Caesar removed the air around Luffy, and Franky and Robin collapsed while trying to carry him away.
• Perona discovered that her Ghost State let her survive without air, but Caesar realized she was stalling and threatened Luffy and the others.
• Perona rushed to protect her companions, but Caesar's men struck her with a Sea Stone Net, and Caesar took away the air until she lost consciousness.
• Caesar ordered his men to bind the captured pirates with Sea Stone chains and said the G5 Branch Navy would not live much longer.

Xi Yan and the others fled across Snow Mountain as a giant salamander pursued them, while Shakky revealed that Caesar was broadcasting an island-destroying weapon test. The group kept running to escape the creature, and Shakky worried about the Straw Hat Pirates as Rayleigh returned to her.

• Xi Yan and the others spotted Caesar's workers delivering candy to a giant gelatinous creature, but their dragon sleigh broke down and the workers ran toward the research facility without their Protective suits.
• Caesar ended the call with his workers and began broadcasting the creature's movements through an Image Den Den Mushi.
• Shakky called Xi Yan and explained that Caesar had announced a weapon test powerful enough to destroy an island, leading Xi Yan to suspect the pursuing creature was the weapon.
• Shakky warned the group to escape, and Kin'emon charged ahead while the others continued running from the salamander.
• Shakky ended the call and hoped Xi Yan and the Straw Hat Pirates would survive, then Rayleigh returned after running out of money for alcohol.

Caesar unleashed the lethal Poisonous Gas weapon Death Country, forcing Xi Yan and the others to flee while Luffy and his companions remained trapped in the laboratory. Xi Yan summoned a Wood Dragon to carry his group away from the spreading gas, while Law and Nico Robin secretly waited for a chance to act.

• The giant salamander transformed into poisonous gas that immobilized and poisoned the Taxi Soldiers, and Caesar celebrated the weapon’s power through a broadcast.
• Caesar revealed that he had never trusted Law, while Vergo and Monet explained that they knew Law’s plans and had been working for Doflamingo.
• Caesar ordered Monet to send Luffy, Robin, Law, and the others outside to face Death Country, but Law and Robin quietly prepared to act once their surroundings were secure.
• As the gas closed in, Zoro suggested catching the fast-moving dragon, but Xi Yan summoned a Wood Dragon to carry his group away.
• Kin'emon mistook Xi Yan’s ability for a Devil Fruit power, and Xi Yan urged everyone to hold on as the Wood Dragon sped away from the poisonous gas.

Caesar, Vergo, and Monet dismissed Xi Yan as a minor threat while monitoring Punk Hazard’s broadcast. Xi Yan reunited with Nami, Usopp, and the others, learned Caesar had taken the children, and agreed with Luffy’s alliance with Law because Moria was likely in Kaido’s hands; the group headed toward the laboratory as Kin’emon held back what he knew about Kaido until Momonosuke was rescued.

• Monet identified Xi Yan as the Moku Moku no Mi user called Sunglasses Man, and Caesar and Vergo dismissed his 100-million-beli bounty as insignificant.
• Nami, Usopp, and Merry spotted Xi Yan’s Wood Dragon carrying Zoro, Sanji, Brook, and Kin’emon, and Xi Yan brought them aboard.
• Xi Yan asked what had happened, and Nami explained that Caesar had defeated them and taken the children while Luffy and the others were away helping Law.
• Nami explained that Luffy had allied with Law to oppose Kaido, and Xi Yan revealed that Moria was likely taken by Kaido, prompting the group to agree they needed to go there.
• Kin’emon considered telling the Straw Hats what he knew about Kaido but decided to wait until they rescued Momonosuke.

Xi Yan confirmed Kin'emon's hatred of Kaido was genuine and accepted Tea Beard as an ally after learning Caesar had betrayed him. He explained how Caesar's vacuum-like ability had disabled Merry's wind, then urged Usopp to test whether the More-More Fruit could amplify Haki.

• Sanji asked Kin'emon what he wanted to tell them, but Kin'emon said he would explain after rescuing his son; Xi Yan checked that he was not one of Kaido's men, and Kin'emon angrily denied it.
• Usopp and Nami explained that Tea Beard hated Caesar for using and discarding him, and Xi Yan spared Tea Beard after confirming he would keep Law's secrets.
• Merry told Xi Yan that Caesar's domain had stopped her from creating wind, and Xi Yan explained that Caesar had likely removed the air and caused the crew to lose consciousness.
• Xi Yan reassured Merry that Caesar's vacuum-like domain had limits, but said Haki would be needed to defeat a Logia user like him.
• Xi Yan suggested Usopp might be able to amplify Haki with the More-More Fruit, and Usopp imagined firing an enormous Haki-coated projectile at his enemies.

Xi Yan's group raced toward the research facility while Luffy, Law, and the others escaped their restraints and prepared to infiltrate it. Law's careful plan unraveled when Luffy rushed ahead, and Caesar remained unaware that the prisoners had escaped.

• Usopp admired the potential of his More-More Fruit, while Xi Yan pointed out that his strength still mattered; Nami explained that Caesar had knocked her unconscious by depriving her of air.
• Xi Yan's group hurried toward the research facility as Sanji revealed Caesar's 300-million-Beli bounty, surprising Tea Beard.
• Robin used her ability to find cannonballs and ignite the warship wreckage, creating smoke that distracted the Marines and covered the prisoners' escape.
• Law revealed that he and Robin had been wearing ordinary chains, then used his ROOM ability to remove the Sea Stone chains from the others.
• Luffy charged out before Law could finish explaining the plan, and Law followed him before using Shambles to enter the research facility with the group.
• Monet, Vergo, and Caesar assumed the prisoners remained restrained and discussed using their corpses or other island inhabitants to demonstrate Caesar's Poisonous Gas.

Xi Yan and the Straw Hat Pirates reached the research facility as poisonous gas spread behind them, and Zoro and Kin'emon cut open its steel gate. After Xi Yan discovered Luffy and the others were not in the cage, Merry used her Wind Force to help the Marines close and secure the gate, promising to hold it in place.

• Xi Yan's group rode the Wood Dragon to the research facility, where they found G5 Marines trapped outside the Great Gate.
• Zoro and Kin'emon cut a huge opening through the steel gate, allowing the pirates and Marines to enter before the poisonous gas arrived.
• Merry noticed the cage meant for Luffy and the others, but Xi Yan used Observation Haki and found no one inside, suggesting they had escaped.
• The Marines and pirates hurried inside, and the Vice Captain ordered the Marines to raise the cut gate and seal the entrance.
• Merry used Wind Force to lift the heavy gate back into place and offered to hold it there while the Marines secured it.

Merry held back the Poisonous Gas, then used Xi Yan’s Summoning Technique to bring the Thousand Sunny into the research facility. The Marines stared in shock as she proudly explained how she had done it.

• Merry explained to the Vice Captain that she had joined the Straw Hat Pirates willingly, and Xi Yan suggested the Marines might help deliver the rescued children.
• Merry held the Great Gate shut against the Poisonous Gas until the threat outside subsided, and Brook confirmed there was no sign of life beyond it.
• Perona returned with news that Luffy and the others were safe, and Law switched Sanji and Franky back into their own bodies.
• Franky worried that the Thousand Sunny might be contaminated by the Poisonous Gas, so Merry said she would bring the ship inside rather than go outside.
• Merry used the Summoning Technique to summon the Thousand Sunny into the facility, leaving the Marines shocked.

Merry revealed that she could seal the Thousand Sunny into a scroll, demonstrating Xi Yan’s ninjutsu to the marines. Law then warned everyone that the research facility had a secret route to the sea and gave them two hours to escape, while the marines prioritized finding Vergo.

• The Vice Captain asked Merry whether she had inherited Xi Yan’s ninjutsu, and Merry said she had learned only the Summoning Technique and Sealing Technique because she was a Ship Spirit.
• Merry sealed the Thousand Sunny into a scroll, shocking the marines and impressing Law with the power of Xi Yan’s abilities.
• Law told everyone that the facility’s route to the sea led through Building A, B Block, and R Building, and gave them two hours to escape before warning that the facility might become unsafe.
• The marines lowered their weapons after the Vice Captain ordered them to focus on rescuing Vergo, and Luffy promised Zoro he would stop letting his guard down.
• Perona told the marines that Vergo was with Caesar and seemed to be working with him, prompting them to angrily accuse her of lying.

Xi Yan joined Law’s plan to capture Caesar and assigned Franky to accompany Luffy while Nami led the others to search for Caesar’s abducted children. The Marines agreed to search for both the children and the missing Vergo, and Merry went with them alongside Sanji as they headed toward R-66.

• The Vice Captain suspected that someone had impersonated Vergo, while the Marines remained convinced Vergo could not be a traitor.
• Xi Yan agreed to accompany Law and arranged for Franky to go with Luffy to capture Caesar.
• Merry explained that Caesar had abducted children and subjected them to years of experiments, prompting the Marines to join the search for them.
• Nami led her group toward the facility’s depths to find the children, while the Vice Captain split the Marines between searching for the children and looking for Vergo.
• Merry chose to accompany the Marines, and Sanji joined her as they set out toward B Block and the Great Gate of R-66.

Caesar realized the Straw Hat Crew, Law, and the G5 Branch Navy had escaped the poison gas and ordered Building A isolated and exposed to Death Country. As Vergo went to confront Law, Xi Yan learned that Law’s heart was in the enemy’s hands and that Law wanted his help retrieving it.

• Caesar, Monet, and Vergo deduced that the G5 Branch Navy had helped the others escape the gas, and a soldier reported that the group had invaded Building A.
• Caesar ordered the passage to B Block closed and Building A’s walls destroyed to release Death Country, despite the danger to his own soldiers, and demanded another Public Experiment broadcast.
• Vergo set out to deal with Law personally, then realized he had no sword and left to fight with his fists and feet.
• Luffy and Franky charged deeper into the tunnel while Xi Yan and Law teleported ahead; Xi Yan said the closing gate would not stop their companions.
• Law showed Xi Yan the hollow space in his chest and revealed that the enemy held his heart, asking for help retrieving it.
• Xi Yan asked whether Law trusted him not to steal the heart.

Xi Yan agreed to help Law retrieve his heart by luring Vergo to the S laboratory, while Nami's group raced toward the Great Gate as Caesar released Poisonous Gas into the facility. Nami carried Tea Beard and the others on a cloud mass toward B Block, leaving Merry's group to catch up behind them.

• Law admitted he feared Xi Yan might keep his heart, but Xi Yan agreed to help him and warned him not to deceive the Straw Hat Crew.
• Law revealed he could lure Vergo to the S laboratory, and he and Xi Yan headed deeper into the tunnel.
• Nami's group learned the Great Gate was closing, and Robin returned after carrying out a task for Luffy.
• Caesar blasted a hole in the wall, sending Poisonous Gas into the facility and forcing Nami's group to flee.
• Nami used her Cloud Cloud Fruit to create a cloud mass that carried Tea Beard and the others toward B Block while they planned to find the children.

Sanji and Merry escaped the poisonous gas with the G5 Marines, then confronted Vergo when he attacked his fellow Marines. As Sanji and Merry fought to stop Vergo, Caesar ordered Monet to trap the Marines and release poison gas, even though Vergo was still among them.

• Merry used her wind to carry Sanji and the G5 Marines through the Great Gate before it closed, while Nami fled ahead.
• A small green dragon attacked the group, but Merry struck it with a powerful gust; the dragon recovered and flew away.
• Vergo appeared and began killing the Marines, while they refused to believe he was a traitor and called him an impostor.
• Merry struck Vergo, and Sanji stepped in to fight him after Vergo threatened to kill the Straw Hat Pirates.
• Caesar ordered Monet to seal the passages and release poisonous gas to kill the G5 Marines, despite Vergo still being there.

Luffy and Franky found Caesar and fought him and Monet, but Caesar escaped after Luffy landed a fast attack. Monet sealed the Great Gate with ice and snow to keep Luffy and Franky from pursuing him.

• Franky brought Luffy to the Great Gate, where Luffy rushed in and struck Caesar with a Haki-coated punch.
• Franky faced Monet, discovered she was a flying Logia Snow-Snow Fruit user, and struggled to fight her without Haki.
• Caesar repeatedly used his air-removing power against Luffy, but Franky pulled Luffy to safety and Luffy later used Second Gear to strike Caesar before he could react.
• Monet blocked Luffy's next attack with a Snow Wall, then urged Caesar to leave so he could return to his experiment.
• Caesar escaped as gas, and Monet froze the Great Gate to prevent Luffy and Franky from chasing him.

Law and Xi Yan infiltrated the S.A.D. production room to lure Vergo there, while Sanji and Merry helped the Marines escape the poisonous gas. Vergo rushed to confront Law and told Doflamingo about the betrayal, leaving Law poised to avenge Corazon.

• Law stopped Xi Yan from smashing the Great Gate, then opened it with a hidden switch to trigger an alarm and draw Vergo to the S.A.D. room.
• Law told Xi Yan that Vergo was his to kill because Vergo had caused Corazon's death, and Xi Yan agreed to let him handle it.
• Vergo abandoned his fight with Sanji after hearing the alarm, while Sanji and Merry rescued the wounded Marines from the poisonous gas.
• Sanji helped the Marines regroup, and their vice captain urged them to follow Sanji and Merry to escape alive.
• Vergo called Doflamingo and reported that Law had infiltrated the S.A.D. room; Doflamingo ordered him to protect the production room and kill Law.

Luffy and Franky confronted Monet on Punk Hazard while Doflamingo ordered her to keep Caesar safe and promised to send Baby-5 and Buffalo. Franky’s lasers and Luffy’s attacks failed to finish Monet, who remained hidden and swift in the snow as they searched for a way to hit her.

• Luffy and Franky questioned Monet about the alarm before Doflamingo called her and warned that Luffy possessed Conqueror’s Haki.
• Doflamingo mocked Luffy for resenting his attempt to recruit the Blood-Eyed Ninja and said he would send Baby-5 and Buffalo to Punk Hazard.
• Monet blocked Luffy and Franky from reaching Caesar, but dodged Franky’s powerful laser attack by hiding within the snow.
• Monet attacked with snow pythons and trapped Franky while Luffy used Gum-Gum Jet Gatling to smash her Snow Top House.
• Monet appeared beside Franky and tried to bite his neck, but Franky fired a laser that forced her to retreat into the snow.
• Luffy sensed Monet moving rapidly through the snow, and Franky realized that her Logia powers made her difficult to defeat.