Vol. 4Toward the Red Line War

Lin Yuan gathered allies and trained his forces while the Straw Hat Pirates faced major battles against the Red Hair Pirates and Kaido. The volume left Lin Yuan establishing a hidden Red Line base as the Straw Hats escaped Egghead.

  • Lin Yuan defeated Demon Tot Musica, rescued Uta, and trained his forces for the coming war.
  • Lin Yuan captured most of the Red Hair Pirates, and Uta learned Shanks may have left her behind as part of his plans for Luffy.
  • Lin Yuan prepared for the war as the Straw Hat Pirates entered the New World and met Fujitora Issho.
  • Zoro lost to Kuina, then joined Lin Yuan’s forces to train and learned that Garp was Luffy’s grandfather.
  • Lin Yuan prepared the Straw Hat Pirates for their confrontation with Kaido on Onigashima.
  • Luffy awakened his Nika form and continued fighting Kaido, while Lin Yuan warned Kuina the transformation could consume Luffy’s life force.
  • Lin Yuan united the Abyss Chamber of Commerce, the Emperors, and the Revolutionary Army to prepare for war against the World Government.
  • Luffy and his allies defeated Saint Saturn’s attackers at Egghead and escaped as Lin Yuan established a hidden base on the Red Line.
Chapters 301–400 Read from Ch. 301

Arc 13Uta and the Red Hair Pirates

Lin Yuan rescued Uta from Demon Tot Musica, brought her into the Abyss Chamber of Commerce, and trained his forces for the coming struggle against the World Government. When Shanks and the Red Hair Pirates came for Uta, Lin Yuan defeated and captured most of them, while Uta learned that Shanks had left her behind and may have viewed her as part of his plans for Luffy.

  • Lin Yuan confronted Demon Tot Musica on Elegia Island as Uta sang its movements, then destroyed the demon’s body and helped Uta master its true form, which she named A Tuo.
  • Lin Yuan brought Uta to Abyss headquarters, where she joined his companions, and Enel invited Kuzan to join the chamber after revealing its strength and its intention to challenge the World Government.
  • Kuzan recovered his leg, and Lin Yuan led his fighters to a secret base where he revealed the powerful Ability User Legion and began training them against A Tuo.
  • Lin Yuan sent his companions through months of concealed training while Shanks learned that Uta was alive and traveled with the Red Hair Pirates to confront Lin Yuan.
  • Shanks demanded that Lin Yuan hand over Uta, but Lin Yuan refused and fought the Red Hair Pirates, while his allies subdued the crew and Sugar turned several members into toys.
  • Lin Yuan captured the Red Hair Pirates except for Shanks, who escaped, and told Uta that Shanks may have been waiting for Luffy.
  • Uta questioned Beckman about why the crew had abandoned her, and Beckman explained their fear of Demon Tot Musica and Shanks’s belief that Luffy was the person Roger had awaited.
  • Uta left the prison with Lin Yuan and his companions, saddened that Shanks might have treated her as a pawn, while Lin Yuan warned Beckman not to escape and revealed that he had taken Flam and Chopper years earlier.
Chapters 301–32525 summaries Read

Arc 14Zoro’s Challenge

Lin Yuan prepared for the coming war while the Straw Hat Pirates entered the New World, robbed the Heavenly Tribute, and crossed paths with Fujitora Issho. Zoro challenged Kuina and lost, then was taken to the secret base to train with Lin Yuan’s powerful fighters, where he discovered that Garp was Luffy’s grandfather.

  • Lin Yuan gave Garp Devil Fruit gauntlets and learned that Garp had trained Luffy and the Straw Hat Pirates in secret.
  • Lin Yuan inspected the Sky Island armory, where Tom showed him the Ark Maxims, merchant ships, weapons factories, raid suits, and the Pluton battleship.
  • Luffy led the Straw Hat Pirates in robbing a Heavenly Tribute convoy, and Vice Admiral Lawrence joined the crew after Lin Yuan secretly changed his orders.
  • The Straw Hat Pirates gained new Devil Fruit powers and a ship, then drew Fujitora Issho’s pursuit until Lin Yuan defeated Issho’s attacks and invited him to join the Abyss Chamber of Commerce.
  • Luffy caused a commotion on an island under the chamber’s protection, while Lin Yuan reunited with Lawrence and found the lost Zoro.
  • Lin Yuan arranged a duel between Zoro and Kuina, who defeated him with Conqueror’s Coating and then joined him with the gathered swordsmen and fighters.
  • Lin Yuan gave Zoro the Nidai Kitetsu and took him to the secret base, where Garp punched him and revealed that he was Luffy’s grandfather.
Chapters 326–35025 summaries Read

Arc 15The Battle of Onigashima

Lin Yuan prepared the Straw Hat Pirates’ confrontation with Kaido and watched as they fought the Beasts Pirates. Luffy awakened his Nika form and continued battling Kaido, while Lin Yuan warned Kuina that the transformation might consume Luffy’s life force.

  • Lin Yuan trained Zoro, revealed the dangers facing the world, and sent him back to the Straw Hat Pirates with a battle suit and a route to Laugh Tale.
  • Zoro and Sanji agreed to help Luffy reach Laugh Tale before joining Lin Yuan’s fight, while Lin Yuan arranged for Kaido to fake his death and let Luffy take his place as an Emperor.
  • The Straw Hat Pirates sailed to Onigashima, where Kaido knocked Luffy unconscious and the crew fought King, Jack, the Flying Six, and the All-Stars.
  • Zoro fought King through a day and night of exchanges, then used Conqueror’s Haki Coating to defeat him as Luffy recovered and challenged Kaido again.
  • Kaido battered Luffy and the others, defeated Zoro, and drove Luffy to the brink before the Drums of Liberation sounded and Luffy awakened in his white-haired Nika form.
  • Luffy and Kaido fought for hours, with Luffy matching Kaido’s strength despite weakening and recovering through the Drums of Liberation.
  • Kaido transformed into an enormous azure dragon, and Luffy used Gum-Gum Giant to grow nearly as large, withstand Bolo Breath, and attack him with lightning.
Chapters 351–37525 summaries Read

Arc 16War on the Red Line

Lin Yuan united the Abyss Chamber of Commerce, the Emperors, and the Revolutionary Army to prepare for war against the World Government. While his forces built a hidden base on the Red Line, Luffy and his allies defeated Saint Saturn’s attackers at Egghead and escaped.

  • Lin Yuan gathered his allies, revealed the scale of his forces and weapons, and laid out a plan to overthrow the World Government alongside Dragon’s Revolutionary Army.
  • Dragon merged the Revolutionary Army into the Abyss Chamber of Commerce, and Lin Yuan’s forces departed for the Red Line while Garp, Kuzan, Shiki, Bullet, and Enel were sent to protect the Straw Hat Pirates.
  • At Egghead, Saint Saturn, Long Wu, Long Liu, Borsalino, and CP0 attacked Luffy and his crew, while Enel freed Vegapunk and brought Garp and the others to the island.
  • Garp, Kuzan, Shiki, Bullet, Enel, Luffy, and Zoro overwhelmed the attackers, killing Long Liu and Long Wu before stopping Saint Saturn from escaping.
  • Shiki and the others killed Saint Saturn, and Borsalino stayed with them as Enel burned Saturn’s remains to ashes.
  • Garp told Luffy he had joined Lin Yuan and ordered the Straw Hat Pirates to leave Egghead, while Garp and Shiki departed with Borsalino.
  • Lin Yuan brought twenty thousand people and seven Ark Maxim vessels to the Red Line, where his forces began building a base concealed by his Time Loop illusion.
Chapters 376–40025 summaries Read
Volume 4 of 5
Volume 4 of 5