lol i had this weird imagination--going by how stupid and retarded isekai/tensei genre are nowadays..from getting OP skill from sleeping on a rock..to using smartphones....i was thinking..maybe..when he wiped his ass all the skills from the pages that he wiped with would...magically be learned ? lmao
i get the feeling that the thing that spoke to him is telling him to use it for that purpose so that he can be gm lol