(Multiple worlds: One Piece → Demon Slayer → One Piece → Inuyasha. More worlds to come.)
Lin Bei transmigrates to the world of One Piece with a portal between worlds in his mind, allowing him to cross over once a year.
Unfortunately, on his first trip he runs into the guy carrying rice, and on his second, a young man returns amid the chirping of the Spring Autumn Cicada. At last, when he’s nearly beaten to death in the One Piece world, he escapes to Demon Slayer! And so begins his wonderful life of being timid in advanced worlds and throwing punches in weaker ones.
