This shiz is good, very in depth anime but poorly adapted ( manga is a lot more in depth)

Questionable/weird relationship between those two + all in all a simple anime. The guy is basically a "deus ex machina" (https://en.wikipedia.org/wiki/Deus_ex_machina) fixing problems in a harem-like-school so if you want to watch something simple & relaxing (knowing that in the end everything will always be ok) then this is the show for you.

It's ok for me as it counterbalances my difficult/negative days at work. Overall a mediocre/not-too-clever anime, but still ok to watch it from time to time.

Edit Oct.2020:
Season #2 just started - similar but not too bad so far.
Edit Dec.2020:
Correction - watched the first 10 episodes of season #2 and I don't like it much.