Vol. 4Voyage Through Troubled Islands
The Straw Hat Pirates traveled through endangered islands, where Allen and the crew broke curses, restored life and memories, and stopped destructive rituals. They reached the Sky Archipelago and helped defend Kumokakure Village, where they learned that the Dark Abyss had corrupted the Cloud Roar Behemoth.
- The Straw Hat Pirates restored life to the Emerald Dream, and Ace and Allen freed Princess Illya and her kingdom from an ancient curse.
- Luffy and his companions entered the Gourmet Arena on Terra to earn points and reach Gluttony Balo.
- The Straw Hat Pirates stopped Balo’s ritual and helped restore Serenia, the Eternal Ark, and Ambra Island.
- Luffy, Sanji, and the others defended Grandpa Old Hunter from soldiers, prompting King Wapol to activate a higher-level purification protocol.
- Allen defeated King Wapol, restored Vista’s emotions, preserved Akasha, and sealed the spacetime rift at Shattered Cape.
- Brook and Allen connected with the Primordial Melody on Tonali before the Straw Hat Pirates reached Rogrim and learned about Unyielding Peak.
- The Straw Hat Pirates passed Rogrim’s trials, and Allen stopped Buena Festa’s ritual and preserved the Memory Ark’s knowledge in the Echo Abyss.
- The Straw Hat Pirates defended Kumokakure Village from corrupted cloud beasts and learned that the Dark Abyss had corrupted the Cloud Roar Behemoth.