Responses
I think this may check most boxes but it is ancient China and character knows a bit about story. Though capable MC
https://www.mangago.me/read-manga/to_be_or_not_to_be/
taking over the body of someone else stories? only stories where the character doesnt know anything beforehand about the life of whos body they take over
so NOT like "i was reincarnated into this character i read about" but YES like "i am now in this random/barely acquaintanted persons body and i get to deal with all their problems without having a clue what issues theyre dealing with."
no magical invisible guides or floating game menus giving cheats either. no historical either.... IM PICKY OKAY? uh thanks.
and no links to mangago lists im allergic.