Chapter Summaries

Little Black Cat discovered that Mechanism City's metal robots were transformed humans, and Fanxin urged them to continue researching the technology. After a month at sea, Fanxin and Ren Fang reached Mushroom Island to replenish supplies and explore its giant mushrooms.

• Little Black Cat told Fanxin that Mechanism City's robots were humans whose minds and abilities had been taken by strange metal before their bodies were replaced.
• Fanxin agreed that Little Black Cat should keep researching the metal and promised to provide whatever support was needed.
• Fanxin changed the ship into its regular form so the crew could enjoy the open deck, and he and Ren Fang drifted at sea for a month.
• When supplies ran low, Ren Fang chose Mushroom Island, and Fanxin told the crew to buy provisions without causing trouble.
• The ship reached Mushroom Island, and most of the crew went ashore to shop while Little Black Cat and Little Fox stayed to guard it.
• Fanxin and Ren Fang disembarked and explored the island, where they found mushrooms of many unfamiliar kinds.

Fanxin discovered that the island’s mushroom spirits lured people into eating poisonous mushrooms so they could devour them, and learned the mushrooms had a history of feeding on the islanders. After the mushrooms captured the island’s people, Fanxin sent robots to rescue them and ordered the island burned so he could find and destroy the strongest Mushroom Spirit.

• Fanxin kept Ren Fang from picking mushrooms after sensing many resentful souls in the patch, and the little mushroom revealed its plan to make the pair into prey.
• Fanxin recalled the crew to the ship and ordered their purchases destroyed; Senior Li Kecheng explained the island’s bloody history and how Man-Eating Mushroom Spirits used people as nourishment.
• A crewman reported that the mushrooms had captured the islanders, and Senior Li Kecheng explained that the mushrooms would eat them when outsiders were unavailable.
• Fanxin agreed to rescue the islanders and learned that the strongest Man-Eating Mushroom Spirit had to be found and destroyed to prevent the mushrooms from returning.
• Fanxin sent robots to attack the mushrooms and rescue the captives, then ordered the crew to set the island on fire while they searched for the strongest spirit.

Fanxin left Ren Fang in charge of the attack on the man-eating mushroom spirits while he checked on Little Black Cat and Little Fox’s research. He learned that Haki could not be absorbed by Mechanism City’s living metal, giving him a possible way to pierce the robots’ defenses.

• Fanxin chose to protect the ordinary people from the man-eating mushroom spirits and asked Ren Fang to find their strongest spirit while he went to Little Black Cat’s laboratory.
• Fanxin explained the mushroom spirits’ threat to Little Black Cat and said the infestation could return unless its strongest spirit was killed.
• Little Black Cat told Fanxin that Mechanism City’s robots relied on living metal at their cores, but breaking through their outer defenses remained difficult.
• Little Black Cat revealed that the metal repelled Haki, and Fanxin realized he could use his Haki-coated blade to break through the robots’ defenses.

Fanxin searched Mushroom Island for the strongest Man-Eating Mushroom Spirit after learning that the rescued civilians would die unless the spirit was found. The mushrooms planned to lure Fanxin into their core area, and the earth-yellow mushroom led him toward their trap.

• Fanxin learned that the rescued civilians were critically ill because mushrooms had made them dependent on the island, and Senior Li Kecheng said finding the strongest Man-Eating Mushroom Spirit was their only hope.
• Fanxin assigned Ren Fang and others to buy food while the rest of the crew went fishing, then left for Mushroom Island to search with Haki and soul power.
• Several surviving mushrooms agreed to lure Fanxin into their core area and use their ultimate weapon against him.
• The earth-yellow mushroom approached Fanxin and offered to lead him to what he wanted, and Fanxin followed while keeping watch for a trap.

Fanxin followed the little earth-yellow mushroom to a pond that the Man-Eating Mushroom Spirits claimed held what he needed to save people. He survived their trap and confronted them, while they defended their attempt to kill him by saying he had destroyed their home.

• Fanxin reached the Man-Eating Mushroom Spirits’ territory, where the little earth-yellow mushroom pointed him toward the center and tried to stop him from sending robots ahead.
• Fanxin ordered his robots to guard the mushroom spirits and kill them if he ran into trouble, then entered the center protected by Haki and Diamond Armor.
• Fanxin jumped into the colorful pond and discovered that mushrooms inside it were trying to devour his vital essence.
• Fanxin crushed the mushrooms, escaped the pond, and accused the mushroom spirits of trying to kill him.
• The little earth-yellow mushroom admitted they had plotted against Fanxin and argued that they were angry because he had destroyed their home.

Fanxin spared the Man-Eating Mushroom Spirits after they agreed to prey only on pirates and wicked people, and the earth-yellow mushroom cured the poisoned captives. After settling the rescued people on an inhabited island, Fanxin continued sailing with his crew, but marines began pursuing their ship.

• Fanxin negotiated a promise from the mushroom spirits to stop attacking ordinary people, and the earth-yellow mushroom treated the poisoned captives aboard the ship.
• Senior Li Kecheng confirmed the captives had recovered, then returned to Wolf Valley as Fanxin arranged for the people to travel with his crew.
• After sailing for ten days, Fanxin and Ren Fang gave each rescued person ten thousand gold coins and left them on an inhabited island.
• Fanxin and his crew departed to continue their travels, while the rescued people stayed behind to begin new lives.
• Three days later, Little Black Cat spotted warships pursuing them, and Fanxin ordered the crew to prepare to fight if the marines attacked.

Fanxin’s crew escaped pursuing Marine warships after Chen Yuning used her weather-manipulating ability to destroy them. Qiangwei then set course for Kuraigana Island, where Fanxin planned to challenge Hawk-Eye again.

• Fanxin told Chen Yuning to stop the Marine warships from pursuing them, and Little Fox went to protect her.
• Chen Yuning created a violent storm, but the Marines refused to turn back, so she unleashed lightning that destroyed their warships.
• Fanxin comforted the unhappy Chen Yuning and told her that reckless people sometimes had the strength to escape their enemies.
• Qiangwei told Fanxin that Hawk-Eye lived on Kuraigana Island, and Fanxin ordered her to steer the ship there.
• Fanxin polished his swords and looked forward to fighting Hawk-Eye again.

Fanxin landed on Kuraigana Island with Ren Fang and Yuning, intending to challenge Hawk-Eye, and encountered baboons skilled at copying human combat techniques. After the baboons defeated Ren Fang and Yuning, Fanxin drove them off with his Haki and continued toward Hawk-Eye.

• Fanxin left most of his crew aboard the ship and explored the ruined island with Ren Fang and Yuning.
• Fanxin and Ren Fang discussed the devastation of war and the possibility of a great war engulfing the world.
• A troop of baboons imitating human fighting styles blocked their path, and Fanxin fought them while warning Ren Fang and Yuning to be careful.
• The baboons overwhelmed Ren Fang and Yuning, but Fanxin used his Haki to frighten them back into the forest.
• Fanxin promised to help Ren Fang develop Haki and urged Yuning to keep training before setting off to find Hawk-Eye.

Fanxin reunited with Hawk-Eye and Zoro on the island, explained that Tyrant Kuma had saved the Straw Hat Pirates, and urged Zoro to train harder. Fanxin and Hawk-Eye began a serious duel while Zoro studied their swordsmanship.

• Fanxin changed course to find Hawk-Eye and arrived at a clearing where Hawk-Eye was training Zoro.
• Fanxin told Zoro that Tyrant Kuma had sent him away to save the Straw Hat Pirates and had since become a Pacifista, asking Zoro to remember his debt.
• Fanxin challenged Zoro to surpass him and said he would meet the Straw Hat Pirates at Sabaody in one year and seven months with their ship.
• Fanxin challenged Hawk-Eye to a fight, and they moved to the ruins while Ren Fang and Yuning stayed behind.
• Fanxin and Hawk-Eye exchanged sword attacks as Zoro watched closely and committed their techniques to memory.

Fanxin fought Hawk-Eye to a standstill until a final clash showed Hawk-Eye was stronger, then rested at his castle and discussed the Shichibukai and the Ancient Weapons. A year later, Fanxin brought his companions to Alabasta and led them inland to explore the desert.

• Zoro reflected on his defeat by Hawk-Eye, while Chen Yuning accused him of plotting against Fanxin and chased him with her ability until Ren Fang made her stop.
• Fanxin and Hawk-Eye fought for a day and a night as the baboons watched and imitated them; their final sword-energy clash showed that Hawk-Eye held the advantage.
• Fanxin rested at Hawk-Eye's castle, where Hawk-Eye explained why he accepted the Shichibukai title and urged Fanxin to keep the Ancient Weapons from the government and pirates.
• Fanxin said goodbye to Hawk-Eye and Zoro, then spent a year traveling before reaching Alabasta with his companions.
• Fanxin ordered Little Black Cat to secure the ship underwater and led the group inland, warning them to watch out for venomous creatures in the desert.

Fanxin led the Heavenly Soul Pirates across the desert to investigate what Crocodile had once sought in the country. On the sixteenth day, scorpions swarmed their camp, and Fanxin took the poisoned crew to Senior Li Kecheng for treatment.

• Fanxin explained that he had brought the crew to Crocodile’s former territory to search for whatever Crocodile had pursued there.
• Fanxin and the crew traveled through the desert for fifteen days, resting in the shade and replenishing their water in Wolf Valley.
• A round-faced crewman warned Fanxin that swarms of scorpions had gathered outside their camp.
• Ren Fang opened Wolf Valley, and the nearby crew members escaped inside, but several others were stung and left unable to move.
• Fanxin used his Diamond Armor to carry the poisoned crew into the Diamond Space, then took Ren Fang and the injured to Senior Li Kecheng for treatment.

Fanxin searched the desert for a Three-Tailed Venomous Scorpion to cure the poisoned brothers, then spent three days evading the giant centipede that emerged after he captured it. After the brothers recovered, he returned the scorpion to the centipede and went back to Wolf Valley to rest.

• Senior Li Kecheng said the bitten brothers could be cured with an antidote from a Three-Tailed Venomous Scorpion, so Fanxin led robots into the desert to find one.
• Fanxin captured a three-tailed scorpion, and the robots delivered it to Senior Li Kecheng, who used its antidote to treat the poisoned crew members.
• A giant blood-red centipede emerged and pursued Fanxin, spraying venom at him as he fled.
• Senior Li Kecheng told Fanxin that the centipede would keep chasing him until he returned the scorpion, but he made Fanxin wait until the brothers had recovered.
• Fanxin fought the centipede and repeatedly cut it apart, but it reassembled and continued chasing him for three days.
• After the brothers recovered, Fanxin returned the scorpion to the centipede, which burrowed away; Fanxin returned to Wolf Valley, bathed, and fell asleep.

Fanxin left Wolf Valley with Xiao Ning and traveled through the desert to Kuba Town, where he learned that Crocodile had been searching for a weapon. He decided to hurry to the royal palace for answers before continuing toward the Sabaody Archipelago.

• Fanxin discussed the desert’s dangers with Little Black Cat and agreed to travel alone while the others stayed inside Wolf Valley.
• Little Black Cat explained that lightning could temporarily disable the metal used by Mechanism City’s robots, but said they needed further research and combat tests to find reliable weaknesses.
• The next morning, Fanxin left Wolf Valley with Xiao Ning, crossed the desert, and paid desert bandits who robbed them.
• After five days, Fanxin reached Kuba Town, released the others to explore, and asked a restaurant owner what Crocodile had sought in the country.
• The owner said Crocodile had reportedly searched for a weapon and pointed Fanxin toward the royal palace, where Crocodile had fought Straw Hat Boy.
• Fanxin agreed with Ren Fang that they had to save time and decided to travel at full speed to the royal palace while the others stayed inside.

Fanxin prepared to leave Kuba Town and begin his journey toward the New World, but discovered that Bai Ling had gone missing. After failing to find her with Haki, he ordered Little Black Cat to deploy robots to search for her trail and rescue her.

• Fanxin told Ren Fang to buy supplies and planned to return to the Sabaody Archipelago within two months to meet Straw Hat Boy and hand over the ship.
• Ren Fang, Little Black Cat, Little Fox, Chen Yuning, and Fanxin explored Kuba Town, bought clothes, and spent the night there.
• The crew gathered at Kuba Town's entrance the next day, but Little Black Cat reported that Bai Ling was missing.
• Fanxin searched Kuba Town with Haki but found no trace of Bai Ling, and he ordered Ren Fang to send robots out to search the desert.
• Little Black Cat learned that Bai Ling had wandered alone to buy a musical instrument, then began deploying robots to track her and find her.

Fanxin and his companions tracked down Bai Ling after human traffickers captured her and put a control collar around her neck. He rescued her from the traffickers, but learned that only Baron, who lived on Mount Baal, had the key to unlock the collars.

• Little Black Cat sent over a thousand robots to search for Bai Ling, and they found her among a group of captives being escorted east by armed traffickers.
• The robots attacked the traffickers, but their leader took Bai Ling hostage and demanded ransom while the robots followed the procession.
• Fanxin and his companions arrived, and Fanxin disarmed the trafficker leader and pulled Bai Ling to safety.
• Fanxin demanded the collar key, but the leader said Lord Baron had kept it and directed Fanxin to Mount Baal near Baal Town, five hundred li away.

Fanxin rescued Bai Ling and other captives from the trafficker Baron, then had Baron and his accomplices handed over to Alabasta’s royal army. He continued to Alubarna to investigate an incident from two years earlier and decided to approach the king directly.

• Fanxin forced the captured escorts to take him to Mount Baal, where he confronted Baron and took the keys to the victims’ collars.
• Fanxin freed Bai Ling and the other captives, then sent Baron, his accomplices, and their victims to the royal army so the victims could seek justice.
• Fanxin warned Bai Ling not to go out alone and sent her and the others back into Wolf Valley.
• Fanxin flew toward Alabasta’s royal palace with Little Fox, stopping to replenish the Flight Armor’s energy along the way.
• After reaching Alubarna twenty-five days later, Fanxin decided to fly into the palace and ask the king about the incident from two years earlier.

Fanxin persuaded Pell to bring him to King Nefertari Cobra and explained that he wanted to find the weapon Crocodile had sought so he could stop the Celestial Dragons’ dangerous research. Cobra agreed to take Fanxin to the object, warning that he did not know how to read its writing.

• Fanxin flew into the palace, where Pell intercepted him and initially refused to let him see the king.
• Fanxin identified himself as Straw Hat Luffy’s friend and explained that he wanted to learn what Crocodile had been searching for; Pell eventually escorted him to the king.
• Fanxin met Nefertari Cobra and Princess Nefertari Vivi, and Cobra asked after Luffy, who Fanxin said was recovering.
• Fanxin told Cobra that he wanted the object Crocodile had sought to help destroy the Celestial Dragons’ research into destructive robots.
• After questioning Fanxin’s motives, Cobra agreed to take him to the object and warned that he could not read what was written on it.

Fanxin visited the ruined royal mausoleum with Nefertari Cobra to inspect the mysterious writing Crocodile had found there. After Little Fox cleared the rubble and Xiao Ning photographed the inscription, Cobra revealed that Nico Robin could read Ancient Script and explained why the government hunted her.

• Nefertari Cobra led Fanxin to the royal mausoleum and explained how Crocodile and Straw Hat Boy had destroyed it two years earlier.
• Fanxin had Little Fox use its powers to move the rubble, uncovering the underground mausoleum.
• Nefertari Cobra led Fanxin, Little Fox, and Pell inside, where Fanxin found the stone covered in writing but could not decipher it.
• Fanxin had Xiao Ning photograph the inscription so he could investigate its origins later.
• Nefertari Cobra told Fanxin that Nico Robin could read Ancient Script and described the government's pursuit of her and its effort to conceal the Void Century.

Fanxin arranged to carry Princess Vivi’s messages and recordings to the Straw Hat Pirates before leaving Alabasta. He gathered his companions and prepared to head for Mary Geoise to collect Devil Fruits before traveling to Sabaody Archipelago.

• Fanxin told Nefertari Cobra he would deliver a message to the Straw Hat Pirates, and Cobra asked him to visit Nefertari Vivi as well.
• Vivi prepared gifts and recorded videos for the Straw Hat Pirates, while Xiao Ning stayed with her to help.
• Fanxin told Little Fox he planned to collect Devil Fruits at Mary Geoise for Ren Fang and the others before going to Sabaody Archipelago.
• Fanxin let his companions shop and explore Alabasta for several days, using alarms and small groups to keep them safe.
• Fanxin returned to the palace, collected Vivi’s gifts, and advised her to focus on her duties as princess.
• Fanxin asked Little Black Cat to give Vivi a robot to help her manage her work.

Fanxin said goodbye to Princess Vivi and traveled to Sabaody Archipelago, where he prepared for the crew’s departure to the New World. After collecting Devil Fruits from controlled Celestial Dragons in Mary Geoise, he helped free slaves and left the city burning.

• Little Black Cat gave Princess Vivi a humanlike robot to gather news about the Straw Hat Pirates, and Fanxin departed while Vivi and Nefertari King Cobra mourned her inability to join them.
• Fanxin flew for three days to reach the ship, then Ren Fang sailed the crew toward Sabaody Archipelago, where they arrived five months later, ahead of their appointed date.
• Wang Yan, Bingfeng, and Langyue reunited with Fanxin, who assigned them to guard the ship and arrange coating for the Straw Hat Boy’s ship while he went to Mary Geoise with Little Fox.
• Fanxin collected a chest of Devil Fruits from two controlled Celestial Dragons and ordered them to keep gathering more.
• Fanxin freed slaves in Mary Geoise by removing their collars, while Little Fox fought guards and set nearby houses on fire to help the escapees flee.