Pirate's Netherworld Swordsman: Rise of the Underworld Emperor

In 1484, the legendary Rocks Pirates fall—but death is only the beginning. A pirate's corpse devours the mythical Nether-Nether Fruit and awakens with memories from Earth, gaining dominion over death itself. Whitebeard and Golden Lion watch in awe as their fallen comrade returns stronger than ever. After a decade in the shadows mastering forbidden powers, Cassio Ferro emerges to shake the Grand Line to its core. The Four Emperors rule the seas—but whispers spread of a fifth force rising from the depths: the Emperor of the Underworld!