Vol. 4The War for Mary Geoise
Chen Yu’s Hua Empire conquered Wano, Totto Land, and Hachinosu before invading Mary Geoise, while the Straw Hats earned the Red Hair Pirates’ approval and Luffy won Shanks’s Road Poneglyph rubbing. The volume ended with Hua Country’s fighters battling the Holy Knights across Mary Geoise as Kizaru joined Saint Garling and Huang Zhong called a hidden figure into the open.
- Zhang Liao captured Doflamingo, and King Riku accepted Dressyrosa’s incorporation into the Hua Empire as Luffy and Luo departed for Wano Country.
- Lü Bu and Ma Chao invaded Wano Country, killed its defenders and people, and captured Yamato.
- Franky fought Gab with General Franky and a giant steel hand before falling unconscious, and Gab carried him toward the main battlefield.
- Chopper took three Rumble Balls, used his medical knowledge to reverse the damage, and earned Hongo’s approval to sail with Straw Hat.
- Zoro and Beckman exhausted each other in a devastating clash, and Beckman told Zoro that the Red Hair Pirates believed Luffy could inspire resistance against the World Government.
- Luffy defeated Shanks in their fight for the Road Poneglyph rubbing, and Shanks urged him to fulfill Joy Boy’s promise.
- Liu Bei defeated Saint Ethanbaron V. Nasujuro with the Divine Tree and Benevolent King's Way Slash.
- Zhang Liao broke through Chongyue’s Black Tortoise defenses with Zacian’s power and won passage toward the northern shore.