One Piece: The Fruit Synthesizer

A Tokyo lab accident sends a cynical scientist plummeting into the East Blue, waking up in the body of Ino, a low-level pirate about to be executed. His survival is tied to The Devil’s Crucible, a cold, analytical system that allows him to extract "Essence" from Devil Fruit users and synthesize new, stabilized powers through a mental forge. As he navigates Loguetown just as the Straw Hats arrive, he must manage his Curse Weight—a mounting spiritual pressure that alerts Admirals to his location if he gets too greedy. Between dodging Smoker’s patrols and hunting for rare fruits, he finds a strange obsession with perfecting the flavor of cheap pirate rum using his chemical knowledge. The Pirate King left a treasure, but Ino is building a legacy out of the very curses that define this world.