One Piece: Developing the Door-Door Fruit into a Gate to Immortality

[Transmigration, All Heavens, Pirate King fan fiction, multiple heroines, harem, womanizer]

Zhao Cheng, an ordinary college student who was electrocuted to death while watching the Pirate King anime in his previous life, was unexpectedly reborn in the year 1503 of the Sea Circle Calendar as the only son of the Goa Kingdom's finance minister. Even more astonishingly, the Door-Door Fruit figurine that had sat on his computer desk in his previous life fused with his soul, becoming the transmigrator's exclusive golden finger.