The Gate Fruit, the World Where One Piece Begins

The thief Jiang Chi died due to a ridiculous "catching a traitor", accidentally traveled to the world of "One Piece", swallowed the "Gate Fruit", and awakened the power to tear apart space. The Gate Fruit evolved into the "Key to All Realms" in his hands - Pirates, Demon Slayer, Steel, Naruto, Marvel, Mystery, Warhammer, Cthulhu, and Primordial, and gradually transformed into the "Master of the Gate" that transcended dimensions.