Otherworldly Commentator: All I Wanted Was to Watch Commentary Videos in Another World, But I Ended Up With Broadcasting Gear! - Reviews

I think him acting cute because she liked cute things is normal with for that age tho

Villain wants to live (tradegy)
Academy's demon limited hunter (gets better)
Trash of the counts family (masterpiece)
Advent of three calamity
Academy's deceased ate it all (similar to tapov)
Kidnapped dragons (master peice)
The legendary mechanic (intergalactic)
Academy's survival guide
Academy's undercover proffesor

So...  is Su Xiao a guy or a girl?

A great sage of the dao, these pinnacles of the world are about to overcome this dimension and I have not yet reached the superhuman level.