This feels weird to read

Personally i find this manwha weird to read because of the fact that the ml is kinda childish and i feel like he somewhat still has the mentality of a child since everyone he knew died when he was 5 yrs old nobody taught him how to grow up(idk how to explain it but nobody was around him in the ages of nurturing) hes just got knowledge cuz of books(im pretty sure he has a library or books around him correct me if im wrong) so it js feels like im watching a minor having sex with an adult which is