Chapter Summaries

Yuu held Prince Hoyo hostage while Fukaboshi and the guards confronted him, then Ryuboshi arrived with Neptune’s order to bring Yuu to Ryugu Palace. Yuu refused to go unless they knelt, leaving Hoyo’s life in immediate danger.

• Yuu stopped Fukaboshi’s guards from advancing by threatening to snap Prince Hoyo’s neck, and demanded that they kneel.
• Prince Hoyo resented humans and thought bitterly of his mother, Queen Otohime, who had died protecting them.
• Prince Ryuboshi arrived and relayed Neptune’s order to bring Yuu to Ryugu Palace.
• Fukaboshi asked Yuu to release Hoyo and come to the palace, but Yuu sat in Hoyo’s carriage and refused to obey.
• Yuu gave the group three seconds to kneel, threatening again to break Hoyo’s neck if they refused.

Yuu forced Prince Fukaboshi, Prince Ryuboshi, and the soldiers to kneel, then released Prince Hoyo. Prince Fukaboshi invited Yuu to Ryugu Palace on the king’s orders, and Yuu continued there with Bonney.

• Prince Fukaboshi and the soldiers knelt to persuade Yuu to spare Prince Hoyo, and Prince Ryuboshi knelt after his brother pulled him down.
• Yuu released Prince Hoyo and turned to leave with Bonney.
• Prince Fukaboshi invited Yuu to Ryugu Palace on the king’s orders, and Yuu agreed to go.
• Yuu and Bonney walked through the streets as fish-men made way for them.
• Yuu told Bonney that her age-changing ability seemed useful, and Bonney explained that she could use it to maintain her youthful appearance.

Yuu brought Bonney to Ryugu Palace, where Neptune welcomed him and served him wine. After Yuu rejected the first wine and asked for something better, Neptune ordered his treasured Fiona Strong Liquor and cautiously asked whether Yuu had really done something unspecified.

• Yuu and Bonney arrived at Ryugu Palace, where Bonney turned two shrimp-men guards into children when they tried to stop them.
• Neptune welcomed Yuu to the palace and ordered wine and delicacies for him.
• Yuu drank two mouthfuls of the first wine, called it poor, and asked Neptune for better wine.
• Neptune ordered his treasured Fiona Strong Liquor and cautiously asked Yuu whether he had really done the matter he had heard about.
• Yuu asked which matter, and his glance sent a chill down Neptune's spine.

Yuu admitted to Neptune that he had killed Hody Jones, easing the king’s fears about an attack on Princess Shirahoshi’s birthday. Yuu then focused on the ancient wines Neptune had promised to serve, hoping to taste all twenty-two legendary varieties.

• Neptune asked Yuu whether he had killed Hody Jones, and Yuu confirmed it.
• Neptune thanked Yuu and bowed, relieved that Fish-Man Island had been spared Hody’s planned attack.
• Yuu asked Neptune to serve wine that suited his taste and thought about the legendary wines of the Void Century.
• The Minister of the Left brought over an ornate golden bottle containing faintly reddish wine.

Neptune gave Saiki Yuu an ancestral bottle of Chivas Regal Whisky in gratitude for saving Fish-Man Island, and Yuu drank it and received rewards from his system. He promised to protect Fish-Man Island and the Mermaid Tribe, then accepted Neptune’s invitation to stay longer.

• Neptune offered Yuu the Dragon Palace Kingdom’s treasured, eight-hundred-year-old bottle of Chivas Regal Whisky.
• Yuu opened the bottle, praised its aroma and flavor, and drank it all.
• The system rewarded Yuu with swordsmanship proficiency and increased Black Blade Shusui’s flame momentum.
• Yuu promised Neptune he would protect Fish-Man Island and the Mermaid Tribe from anyone who threatened them.
• Neptune welcomed Yuu to stay on Fish-Man Island longer.

Yuu stayed on Fish-Man Island, helped Neptune deal with Vander Decken IX, and then sailed with Bonney toward the New World. After Yuu split a massive whirlpool with his sword, the crew spotted an unidentified ship ahead.

• Yuu stayed on Fish-Man Island for Princess Shirahoshi's birthday banquet, while Neptune ignored his sons' complaints about Yuu.
• Yuu helped Neptune get rid of Vander Decken IX after the rogue repeatedly harassed Shirahoshi.
• Yuu and Bonney set sail for the New World, and Bonney refused to part ways with him.
• Yuu used One-Sword Style: Blazing Inferno to split and evaporate a whirlpool blocking their ship.
• A lookout reported an unidentified ship ahead, and Bonney asked whether the crew should detour or approach it.

Yuu and Bonney’s crew encountered a gathering of pirate ships affiliated with Whitebeard. Yuu suspected they were preparing to rescue Ace and decided to approach them.

• Bonney ordered her crew to report any problems directly to Yuu and follow his decisions.
• Yuu’s vessel approached several pirate ships as the fog cleared.
• The crew recognized the Squard Pirates and learned that the gathered crews were affiliated with Whitebeard.
• Yuu recalled that Ace had been captured and suspected the pirate crews were heading to Marineford to rescue him.
• Yuu smiled and decided there was something worth watching.

Yuu stopped Squard’s ship and revealed that he knew the Whitebeard Pirates were preparing to fight the Marines at Marineford. The chapter ended with Squard demanding to know who Yuu was and how he knew about their operation.

• Yuu decided to approach the Whitebeard Pirates and head for Marineford instead of traveling to Kuraigana Island to find Hawk Eyes.
• Squard warned Bonney’s approaching ship to stop after finishing a call with Marco about the Marineford operation.
• Yuu teleported from Bonney’s ship onto Squard’s ship and told Squard to lower his sword.
• Yuu unleashed his Conqueror’s Haki, knocking out many crew members and proving he was powerful enough to speak with Squard.
• Yuu warned Squard that fighting him before the battle at Marineford would be disadvantageous, and Squard demanded to know how Yuu knew about their mission.

Yuu demanded that Squard take him to Whitebeard, and a system mission prompted him to join the Summit War and rescue Ace. After Squard hesitated over whether Yuu was a threat, he agreed to contact Marco.

• Yuu asked Squard to take him to Whitebeard so he could help rescue Ace.
• Squard and a nearby pirate captain questioned Yuu, who warned them that Ace's execution was only days away.
• The system assigned Yuu a mission to participate in the Summit War and rescue Ace.
• A pirate suggested contacting Marco, but Squard first refused because Yuu might be a Marine spy.
• Yuu threatened to wait for Whitebeard at the Summit War, and Squard called Marco, who asked what had happened.

Saiki Yuu contacted Whitebeard and arranged to meet him at Sicilia Island before heading to Marineford to rescue Ace. After reaching the island, Yuu entered the Whitebeard Pirates’ forest base and encountered Diamond Jozu.

• Squard reported that Yuu had arrived and wanted to meet Whitebeard, and Yuu took the Den Den Mushi to speak with Marco.
• Marco recognized Yuu as the Supernova with a one-billion-Beli bounty for killing a Celestial Dragon at Sabaody Archipelago.
• Yuu challenged Whitebeard to meet him, and Whitebeard told him the Whitebeard Pirates were on Sicilia Island.
• Squard gave Yuu an Eternal Pose, and Yuu set sail with the Bonney Pirates for Sicilia Island.
• After more than a day at sea, Yuu reached Sicilia Island and walked into the Whitebeard Pirates’ forest base.
• Yuu found Diamond Jozu leaning against a tree and drinking.

Saiki Yuu arrived at the Whitebeard Pirates’ headquarters and asked to meet Whitebeard, hoping to form an alliance. After Marco directed him to Whitebeard’s cave, Whitebeard tested him with Conqueror’s Haki, and Yuu answered in kind.

• Jozu stopped Saiki Yuu at the Whitebeard Pirates’ territory and prepared to fight, but Yuu introduced himself and asked to see Whitebeard.
• Jozu verified Yuu’s identity using his bounty poster, then led him to the headquarters.
• Yuu saw the Whitebeard Pirates feasting, and Marco greeted him and pointed him toward Whitebeard’s cave.
• Yuu entered the cave, where Whitebeard released Conqueror’s Haki to test him, and Yuu responded with his own.

Yuu and Whitebeard fought in a destructive clash that ended in a draw, and Whitebeard recovered his spirits despite his injuries. Whitebeard questioned Yuu's claim that he had come to save Ace and asked what he truly wanted.

• Marco ordered the crew to retreat while Yuu and Whitebeard clashed with Conqueror's Haki, collapsing the cave.
• Yuu and Whitebeard fought with their blades and powers, shaking the island and sending a tsunami toward them.
• Whitebeard struck the sea with his quake power, while Yuu countered with sword energy, and they each stepped back.
• Yuu judged that he had fought Whitebeard to a draw using only part of his strength, while Whitebeard laughed and felt refreshed by the battle.
• Whitebeard asked Yuu whether he was Saiki Yuubao and questioned why he had come to save Ace.

Yuu struck a deal with Whitebeard: he would help rescue Ace in exchange for two bottles of fine wine. After spending time with the Whitebeard Pirates, Yuu joined them as they set out for Marineford.

• Whitebeard offered Yuu two bottles of fine wine if he rescued Ace, and Yuu accepted.
• Whitebeard told Yuu that the Navy would execute Ace at Marineford the day after tomorrow and described the pirates' plan to attack.
• Yuu drank with the Whitebeard Pirates on Sicilia Island and grew close to their captains.
• Yuu returned to Bonney's ship, then ordered Bonney and the others to stay safely on Whitebeard's island.
• Whitebeard assembled his crew the following morning, and Yuu boarded their whale-shaped warship as they set sail for Marineford.

Yuu traveled with the Whitebeard Pirates toward Marineford, where Sengoku revealed that Ace was Gol D. Roger’s son. Whitebeard’s fleet emerged from beneath the sea and he demanded Ace’s release, leaving the battle about to begin.

• Izo invited Yuu to visit Wano and share its fine wine after the war, and Yuu accepted.
• Yuu spotted Squard’s fleet approaching Marineford alongside the Whitebeard Pirates’ warships and allied crews.
• Sengoku announced that Ace’s father was Gol D. Roger, shocking the people watching around the world.
• Whitebeard and an unfamiliar figure unleashed powerful Conqueror’s Haki, knocking people unconscious and startling Sengoku.
• The Whitebeard Pirates’ warships burst through the sea’s coating, and Whitebeard demanded that the Marines release Ace.

Yuu challenged Hawk Eyes to a duel at Marineford while Whitebeard and the Navy began fighting. Luffy and other allies arrived to rescue Ace, and Yuu prepared to face Hawk Eyes as the battle erupted around them.

• Yuu decided to challenge Hawk Eyes first because the executioners had fallen under the Conqueror's Haki of Whitebeard and Ace.
• A Navy warship crashed into Marineford, and Luffy, Crocodile, Jinbe, Buggy, and other escaped prisoners emerged from it.
• Garp trembled at seeing Luffy arrive to oppose the Navy, while Hancock welcomed his appearance and the Newkama Land King recognized Kuma among the Seven Warlords.
• Kizaru attacked Whitebeard with Yasakani no Magatama, Marco intercepted him, and Whitebeard's blows sent seawater surging toward Marineford.
• Aokiji froze the seawater, and Hawk Eyes accepted Yuu's challenge by drawing the small blade at his chest.

Saiki Yuu challenged Hawk Eyes and gained the upper hand in their sword duel using an ice spike. After learning Yuu’s identity, Hawk Eyes accepted the challenge seriously, and both swordsmen drew their black blades.

• Yuu fought Hawk Eyes with an ice spike coated in Armament Haki and forced him back.
• Hawk Eyes asked Yuu’s name, and Yuu introduced himself as Saiki Yuu, prompting the onlookers to recognize him.
• Yuu clarified that he had a cooperative relationship with Whitebeard rather than being part of his crew.
• Hawk Eyes formally accepted Yuu’s challenge, drew his Black Blade, and Yuu drew Black Blade Shusui.
• A Navy Soldier who admired Yuu secretly picked up the discarded ice spike and kept it.

Yuu began his battle with Hawk Eyes at the Summit War, wielding the flaming Black Blade Shusui and displaying strength that shocked the spectators. As the battlefield erupted into chaos, Yuu told Hawk Eyes to fight at full power or risk being cut down.

• Hawk Eyes admired Black Blade Shusui and considered defeating Yuu to claim the blade.
• Yuu charged Hawk Eyes, spreading Conqueror's Haki and igniting the battlefield with Shusui's flames.
• Yuu's sword energy and Haki knocked out many Navy Soldiers and wounded Gecko Moria, while the other Warlords moved away.
• Doflamingo mocked Moria, then attacked Crocodile, whose severed head turned to sand and reformed before he fought back.
• Hawk Eyes was shocked that Yuu had blocked his strike without effort, and Yuu challenged him to use his full strength.

Saiki Yuu defeated and killed Hawk Eyes Mihawk in a duel during the Summit War. With Hawk Eyes dead and the Marines shaken, the Whitebeard Pirates' allied crews resumed their charge.

• Hawk Eyes Mihawk unleashed his strongest sword strike, Dark Night Descends, against Saiki Yuu.
• Yuu answered with One-Sword Style: Great Thousand Worlds and overwhelmed Hawk Eyes in their clash.
• Hawk Eyes, exhausted and unable to defend himself, accepted defeat with his arms spread and chest exposed.
• Yuu cut Hawk Eyes in two, making him the Summit War's first casualty.
• Sengoku raged at Hawk Eyes's death as the Marines' morale faltered and allied Pirate Crews charged forward.

After defeating Hawk Eyes Mihawk, Yuu gained a stronger Black Blade Shusui and swordsmanship, then stopped the executioners from killing Ace. As Kizaru confronted him, Yuu mocked him about their last fight and threatened to put him back in bed.

• Yuu defeated Hawk Eyes Mihawk, completing the mission and earning an upgraded Black Blade Shusui and a 500-point increase in swordsmanship.
• Yuu tested the blade and discovered that it released sword qi with a casual swing.
• Sengoku ordered the executioners to kill Ace, but Yuu knocked them unconscious with Conqueror’s Haki.
• Whitebeard praised Yuu’s strength, while Ace wondered how someone so powerful had joined the Whitebeard Pirates.
• Kizaru appeared to confront Yuu and complained about his injuries and unrepaired sword.
• Yuu teased Kizaru about their previous fight and warned that he could put him back in bed.

Yuu fought off Kizaru, who Marco then pursued to keep him from attacking ordinary pirates. As Luffy charged toward the Execution Platform, Garp let him pass, but Aokiji moved to stop him with ice spears.

• Kizaru attacked Yuu, but Yuu used Conqueror's Haki and Shadow Bear Fire to force him to retreat.
• Marco intercepted Kizaru and pursued him when he attacked other pirates.
• Akainu stayed focused on Whitebeard and ordered Aokiji to act, while Sengoku guarded the Execution Platform and Garp remained conflicted.
• Luffy punched Garp, who deliberately held back and stayed down rather than stop his grandson.
• Aokiji attacked Luffy with two ice spears formed by his Ice Block: Ice Spears technique.