Illusionist in the Pirate World

Transmigrated into the One Piece world as a Celestial Dragon's slave, the protagonist relies on a mysterious ability that feeds him fragmented soul information, pushing him to the brink of madness. He cleverly obtains an illusion-type Devil Fruit, solving his madness but revealing a life-threatening condition. To survive, he uses his illusions, leading to hilarious misunderstandings with characters like Doflamingo, Zephyr, Fujitora, and even Im and the Gorosei, who are baffled by his increasingly powerful and reality-bending illusions.