Art is very chibi-like and could be a turnoff to some people, but other than that this isekai is very well executed, albeit a bit generic. MC is actually likable for a change which is nice, and he isn’t a beta cuck lol
As a side note, why is there a harem tag? Maybe later down the line? All the way up to Chapter 18, which is the latest translated chapter, only Haru is a romantic interest (they have sex too). Guess there must be a harem later or something