Chapter Summaries

Nereus’s agreement with the World Government restored Fish-Man Island’s rights and gave it room to develop, though the public explanation denied Amphitrite was a Lunarian. The chapter left Alber suspicious of the report and heading toward Fish-Man Island to investigate.

• Harald accepted that Nereus had achieved peace through methods unsuitable for Elbaf, while Neptune reacted to the news that Fish-Man Island had regained its rights.
• Golden Lion abandoned his contest with Silver Axe and decided to build a Flying Empire of his own.
• Fish-Man Island’s residents celebrated Nereus’s success, and he told Amphitrite that the agreement depended on their continued strength.
• Nereus said Amphitrite, Nanamo, and the next generation would train in the Lawless Area of the Sabaody Archipelago, with him guarding them.
• Alber questioned the World Government’s claim that Amphitrite was not a Lunarian and decided to visit Fish-Man Island.

Nereus recruited all 57 young Flying Fish-Men and mermaids who could potentially learn to fly into a new royal guard, while Babel began claiming territory for the Fish-Man Pirates on the Sabaody Archipelago. Babel’s enemies attacked him, and he prepared to retaliate with his Wrath of the Wisdom King.

• Nereus summoned 57 Flying Fish-Men and mermaids of suitable age and offered to train them as his royal guard; all agreed to join.
• Nereus told the recruits to inform their families before beginning seven days of closed training.
• Babel claimed GR 10 through 19 on the Sabaody Archipelago for the Fish-Man Pirates, leaving GR 0 through 9 as a buffer zone between them and the Marines.
• Pirates occupying the Lawless Area joined forces and attacked Babel with firearms and explosives.
• Babel blocked the attacks with his Vajra Body and unleashed his Wrath of the Wisdom King.

Babel established the Ryugu Kingdom’s office on Sabaody and offered coating craftsmen protection in exchange for restricting their work to permitted ships. As Tom arrived on Sabaody on his way back to Fish-Man Island, he was stunned by how far the kingdom’s influence had grown and felt returning was the right choice.

• Babel attacked Pirates in the Lawless Area, lost his wig in the fighting, and set up a Ryugu Kingdom office in GR 10.
• The Marine garrison learned Babel was attacking, but its commander ordered the soldiers not to intervene.
• Babel offered Sabaody’s coating craftsmen protection if they coated only ships with Ryugu Kingdom permits, and the craftsmen asked for time to consider.
• Babel reported the negotiations to Nereus as Tom arrived on Sabaody and saw the Ryugu Kingdom office sign.
• Tom, returning to Fish-Man Island to meet its new king, was astonished by the kingdom’s expansion and decided he had made the right choice in coming back.

Tom traveled to Fish-Man Island to meet Nereus and gave him the blueprints for Pluto, hoping the kingdom could use them to defend itself. Nereus reassured him that the real Pluto warship was already beneath Wano Country.

• Tom asked the Ryugu Kingdom's office in the Sabaody Archipelago to arrange a personal meeting with Nereus and traveled back to Fish-Man Island with a squad of warriors.
• Tom walked through Fish-Man Island, noticed its residents seemed more at ease and its visiting pirates more restrained, and told a former neighbor he had come to present a gift.
• Tom met Nereus at Ryugu Palace and handed him the blueprints for Pluto, warning him not to reveal them unless he was certain it was safe.
• Nereus thanked Tom and revealed that the Pluto warship from the great war was beneath Wano Country.

Tom discussed Pluto with King Nereus, then returned to Water 7 while Fish-Man Island continued developing its defenses and training recruits. During a routine patrol, Rachel spotted a human swimming unaided at extreme depth and reported that a relative of Amphitrite had arrived.

• Tom told King Nereus that rebuilding Pluto was beyond Fish-Man Island’s current abilities, though he could repurpose some of its technology.
• Nereus asked Tom to teach Fish-Man Island residents how to disable ships, but Tom chose to return to Water 7 and recommended his younger brother Den for the task.
• Tom returned to Water 7, and MADS published a paper announcing its discovery of the Lineage Factor.
• Nereus’s fifty-seven recruits endured rigorous physical training, while Babel took up his post as an armed security officer at the Sabaody Archipelago office.
• Rachel spotted a person swimming without protection at nearly ten thousand meters deep and notified Nereus that a relative of Amphitrite had arrived.

Alber reached Fish-Man Island seeking the suspected Lunarian he had seen in the news, while Amphitrite and Nereus set out to find him. After smugglers reported Alber to the World Government, Cipher Pol refused to investigate because he was on Fish-Man Island and might be connected to Amphitrite.

• Amphitrite heard from Nereus that Rachel had spotted a winged person underwater and agreed to go look for him.
• Alber reached Fish-Man Island after diving through the sea, but he had no idea how to find the person he sought.
• Nearby smuggling merchants suspected Alber was a Lunarian and called the World Government to claim the reward.
• A Cipher Pol vice-captain ordered the report dismissed, reasoning that investigating Alber could provoke Nereus and bring no benefit.
• The smugglers realized that Marines and the World Government would not act on Fish-Man Island, where Nereus's power had changed the balance.

Alber joined Nereus’s growing forces on Fish-Man Island after meeting Amphitrite, while Sebastian reached the East Blue to assess Dragon’s strength. Before Sebastian could test Dragon, Marine Admiral Zephyr arrived, apparently tracking him down.

• Alber met Amphitrite, confirmed they were both Lunarians, and told her he wanted to become stronger.
• Nereus invited Alber to join him, and Alber accepted, hoping to grow stronger and oppose their common enemy.
• Amphitrite and Nereus discussed Alber’s care, and Nereus arranged for him to stay at Ryugu Palace before training with the Flying Fish Army.
• Sebastian arrived in the East Blue and met Dragon on an uninhabited island to judge whether Dragon could control the people aboard his ship.
• Dragon’s subordinate warned that a warship had approached, led by Marine Headquarters Admiral Black Arm Zephyr.

Dragon met with Zephyr, who had tracked him down through Garp, to learn what Dragon had witnessed in a sealed Navy operation in the West Blue. After Dragon described it as hell, Zephyr refused to join his movement but hinted that he might someday recommend someone to help him.

• Sebastian told Dragon he trusted his brother's judgment and offered to help him escape, but Dragon asked him to wait nearby.
• Zephyr left the fleet escorting East Blue kings and met Dragon on an uninhabited island, having found him through information from Garp.
• Zephyr asked what Dragon had seen during the Navy operation in the West Blue, which Headquarters had sealed as top-secret information.
• Dragon answered that he had seen hell, confirming Zephyr's suspicions about what Garp had told him.
• Dragon invited Zephyr to help build an army against the World Government, but Zephyr refused, saying his defection would draw overwhelming attention to Dragon's group.
• Zephyr said he might someday recommend someone to join Dragon's side.

Three years passed as Dragon built his strength, pirates from the Rocks Pirates became legends, and Fish-Man Island expanded its military. In Sea Circle Calendar 1508, rumors spread of Harald hunting pirates in the Florian Triangle, while Nanamo teased Alber during his Rokushiki training.

• Zephyr left after meeting Dragon, and Sebastian sparred with Dragon before entrusting him with the ship and crew.
• Dragon chose to build strength slowly as the Navy recruited and Whitebeard, Golden Lion, and Big Mom rose to fame over the next three years.
• In Sea Circle Calendar 1508, Morgans investigated reports of a monster attacking pirate ships in the Florian Triangle, where Harald had been hunting pirates.
• Nereus oversaw Fish-Man Island's expanded army, while Sebastian taught Rokushiki to the royal guard after their three years of training.
• Nanamo called Rokushiki mostly useless for Alber and told him that his seniority might one day make her his grandmother.

Nanamo discussed her family’s seniority with Alber before Sebastian urged her to take her responsibilities and training seriously. Meanwhile, Fish-Man Island’s schools began a new term, where a teacher noticed that Kawamatsu was missing.

• Nanamo told Alber that Amphi might become her stepmother, making Nanamo his grandmother by clan seniority, and Alber said he did not care about titles.
• Sebastian agreed with Alber’s view that victory mattered most and offered to teach Nanamo ambush tactics, but she said Nereus had already filled her schedule with lessons.
• Sebastian reminded Nanamo that her strength mattered because she could be targeted as Nereus’s daughter, while Nanamo complained that she could not control her height and was already following her schedule.
• Nanamo ordered Hermes to stop speaking while he played the role of a sofa, and Hermes worried that she showed no urgency about possibly having another sibling.
• Fish-Man Island’s schools began a new term at the expanded Academy District Branch Island, where students underwent physical assessments and a teacher asked where Kawamatsu had gone.

Nereus learned that Kawamatsu and his mother had gone missing after their ship sank, and he prepared to search for them, likely in Wano Country. Before he left, Kaido arrived aboard the MADS ship and asked Wobigon about a strange feeling that something had been taken from him.

• Kawamatsu's homeroom teacher reported that he and his mother had not returned from their trip during the school vacation.
• Sebastian told Nereus that the mother and son had sailed into the open sea, their ship appeared to have sunk, and the search had found no definite news.
• Nereus suspected they had drifted to Wano Country and planned to go look for them with Big Pan, Nanamo, and Hermes while the search continued.
• Kaido fell onto the MADS ship, greeted Wobigon, and asked for food.
• Kaido told Wobigon that after escaping the World Government's research institute, he had felt as though something belonging to him had been taken away.

Kaido left the MADS ship after speaking with Sane, while Nereus and his companions flew toward Wano Country and obtained a Permanent Log Pose from Umit. Umit presented his accounts to Nereus, who assured him his position as King of Shipping was secure, and Nanamo found the ledger in order.

• Kaido discussed Wobigon's divination with him, then left the MADS ship after speaking with Sane.
• Hermes flew Nereus and the others above the clouds toward Wano Country, where they needed a Permanent Log Pose to find their destination.
• Umit prepared a Permanent Log Pose for Nereus and dismissed his secretary so she would not be involved.
• Umit welcomed Nereus and handed him the Log Pose and his yearly accounts.
• Nereus passed the ledger to Nanamo, who said the accounts looked fine, and Nereus remarked that shipping seemed profitable.

After leaving Umit, Nereus headed for Wano Country, where Kawamatsu and his injured mother were stranded and persecuted by locals. Kawamatsu and two Minks were captured and nearly burned as demons before Nereus appeared above them on a white cloud, seemingly as a god.

• Nereus reassured Umit that he had no interest in the smuggling trade, then departed for Wano Country.
• Kawamatsu and his mother hid in western Kuri after locals attacked them, and his mother explained the Fish-Man Race’s history of discrimination.
• Kawamatsu went to sea for food, fled a giant carp, and found two drowned Minks on the shore.
• Wano Country locals ambushed Kawamatsu and captured him with the Minks, intending to burn them as demons.
• The locals connected Kawamatsu’s mention of Ryugu to their gods, stopped the fire, and fell to their knees when Nereus appeared on a white cloud.

Nereus arrived in Wano Country and rescued Kawamatsu, Inuarashi, and Nekomamushi from the locals, who mistook him for a sea god. As Big Pan went to find Kawamatsu’s injured mother, Nereus explained Wano’s flooded geography, and a loincloth-clad man emerged from the inland sea.

• The people of Wano Country knelt in fear as Nereus arrived on Hermes, and Kawamatsu reunited with him and asked after his mother.
• Kawamatsu introduced Inuarashi and Nekomamushi, who explained that they came from the Mokomo Dukedom and had searched for Wano Country.
• Nereus sent Big Pan with Kawamatsu to find his injured mother and let the locals remain kneeling.
• Nereus explained that the old Wano Country lay beneath the inland sea after its enclosing walls caused the area to flood.
• A man wearing only a loincloth emerged from the inland sea.

Nereus arranged for Nanamo to test her combat ability against Kozuki Oden, who had offered to accept punishment on behalf of the villagers who mistook Nereus for a monster. After Nanamo flung Oden into the sand, he drew Ame no Habakiri and prepared to fight in earnest, unaware that she was furious about her wallet.

• Kozuki Oden rebuked the villagers for bullying Inuarashi and Nekomamushi, then offered to take their punishment in their place.
• Nereus said the villagers could go free if Oden defeated Nanamo, and Oden accepted the challenge.
• Oden asked Nanamo to take him out to sea if he won, while Nereus used the fight to test her strength.
• Nanamo hurled Oden into the sand, and he recovered and drew Ame no Habakiri after Nereus urged him to fight seriously.
• Oden bowed to Nanamo as a worthy opponent, and Nanamo launched Elbaf Spear: Sea Roar while angry about her wallet.

Nanamo fought Kozuki Oden with a powerful combination of Elbaf Spear and Fish-Man Karate, eventually defeating him despite his fierce counterattacks. Nereus then asked Oden to translate his Poneglyph notes so he could check them against the Kozuki Family’s knowledge.

• Nanamo struck Kozuki Oden with her Sea Roar, and he blocked part of its force before being sent skidding across the beach.
• Kozuki Oden attacked with Samurai Soul, but Nanamo bound his sword swing with water currents and pierced his Haki defense with Dragon Fang Pierce.
• After the fight, Nereus returned Nanamo’s wallet with a check inside, and she happily accepted it.
• Nereus told Nanamo that Oden had lost and asked whether he would help with a task.
• Nereus showed Oden his notes on Poneglyphs and asked him to translate them so he could check for discrepancies.

Nereus treated Kawamatsu’s injured mother with Amphitrite’s Soul Fire and accepted Inuarashi and Nekomamushi as followers. He then sent Big Pan to investigate a Seastone vein beneath the island.

• Nereus left the shore, while Kozuki Oden returned to the sea to catch carp for oden broth.
• Nanamo asked to bring giant carp back to Fish-Man Island, and Hermes eagerly agreed to transport them.
• Inuarashi and Nekomamushi said they wanted to leave Wano Country and follow Nereus, and he accepted them.
• Nereus found Big Pan, Kawamatsu, and Kawamatsu’s injured mother, then used a carried flame of Amphitrite’s Soul Fire to treat her.
• Nereus told Big Pan to swim beneath the island and estimate the extent of its Seastone vein.

Big Pan explored beneath Wano and found vast Seastone reserves, prompting Nereus to plan undersea mining. The group prepared to leave after discussing Zunesha, Pluto, and the uncertain whereabouts of Wano’s Devil Fruits.

• Big Pan swam deep beneath Wano and found Seastone veins extending under the country’s old landmass.
• Nanamo realized Nereus intended to establish an undersea Seastone excavation site to bypass Wano’s closed borders.
• Nereus said retrieving Pluto would require Zunesha’s power and could wait until Wano opened its borders.
• Nereus explained that Zunesha was intelligent but could only be understood by those with the Voice of All Things.
• Nereus finished the survey and planned to leave, promising to catch carp fry for Inuarashi and Nekomamushi in the open sea.
• Nereus called on Hermes to prepare for departure.

Nereus secured an Eve sapling from the Tontatta Tribe and planned to plant it on Delta Island to support underwater development. Inuarashi and Nekomamushi reunited with Luna, and their anger at Wano Country surfaced before troubling news arrived from Fish-Man Island.

• Nanamo fed Nekomamushi, Inuarashi, and Kawamatsu dry rations after their hunger became obvious aboard Hermes.
• Gancho gave Nereus the Tontatta Tribe’s cultivated Eve sapling, and Nereus asked them to grow more in exchange for bringing them Noland’s descendants.
• Nereus planned to plant the sapling on Delta Island and brought Inuarashi and Nekomamushi there with Luna.
• Luna recognized Inuarashi and Nekomamushi and recalled the claimed alliance between Zou and Wano Country.
• Inuarashi and Nekomamushi called the alliance a lie and complained that Wano Country’s people had called them monsters and tried to burn them.
• Nereus asked Luna to look after them on Delta Island before troubling news arrived from Fish-Man Island.

Babel discovered that Una had vanished from her post and used her Vivre Card to trace her to a departing ship. He confirmed she was aboard and launched an attack, leaving her rescue unresolved.

• A patrolman told Babel that Una had disappeared from her post at GR 17, and Babel checked her Vivre Card.
• Babel traced Una's location toward the World Government's office and ordered Rachel to block suspicious ships with the Sea Beasts.
• Babel rushed to the docks, inspected the departure records, and learned that the latest ship had left fifteen minutes earlier.
• Babel swam after the ship and confirmed with his Vivre Card and Observation Haki that Una was aboard.
• Babel formed a compressed water vortex and attacked the ship with Water Heart: Current Shoulder Throw.