wasnt their a manga where an office worker got sent somewhere and ended up enrolling at an elementary school for demons even at his age and treated like a kid
So basically he has lived there for at least two days and has made no actual attempts at communication or learning even the most basic phrases. Interesting concept, shit execution.
This seems like a pretty good setup and execution so far. I also think it'd be interesting to see a chapter here and there that retells previous events from Mary's perspective.
Can't wait to read more.