The male protagonist is very reserved, gentle, and occasionally venomous, while the female protagonist is a cute and cute girl who has a crush on each other.
It's very warm and childish. Remember the simple and beautiful boyhood.
One is a cold and gentle academic master, the other is a silly girl who is cute and a little timid.
There is also a childhood friend who is sharp-tongued and awkward, and a perfect boy who is his childhood sweetheart. There are also the worries of a group of boys and girls.
Concept: Not abusive, very warm, but also very childish. Remember the simple and beautiful boyhood.