Voyage: the Straw Hat Thief

Kaito Daiki traveled to the world of One Piece, but he had the soul of an Earthling in his body. When he comes to this world, he has the final knight's transformer and a few random knight cards. As long as he steals valuable treasures in this world, he can get random rewards. One day, he met a boy wearing a straw hat who smiled and extended his hand to him: "Are you the most powerful thief in the world? Come on my boat!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.