i think it's just mainly for the fact that the stuff he can use are very limited in the age. if he was sent to another world with modern medicine too he'd have had no problem doing his jobs as a surgeon.
I can’t believe this is finally ending. I’ve been reading this since I was still a student, all the way until I started working. Hahaha. I feel so old now.
Why does that the author always make bastard tops(╯°Д °)╯╧╧
But on the other side, it made the redemption arc sweeter
not sweeter than my breast milk....heh