Concave-convex world fanfic OC, male protagonist, OOC tribute, character tribute, no cp (any K). The soul wears a person, and wants to go home on a mission to save everyone. There are four OCs, none of them are dreams, women wear men. There is a system for navigating a different world. (I'm sorry if I missed some words if I'm a newbie)
Nice! The author is so kind