One Piece: Lightning's Heir

Arthur found himself on the brutal shores of Jaya in the year 1493. He was not content with weakness in the world of One Piece; he craved Strength. ... Five years of relentless preparation, of physical and mental torment, transformed him. all in pursuit of one singular goal: the Rumble-Rumble Fruit. He defied the odds, riding the monstrous Knock-Up Stream. A year of tireless searching led him to a forgotten relic, a colossal ship swallowed by the White-White Sea, a testament to a bygone era. And within its depths, he found the object of his obsession.