#1

There are three friends who have been friends since they were children. But one of them is the smartest in school. And these two friends always make studying a joke so they are always scolded by the teachers. One day, the principal talked and asked Kaimi, If only she could teach and scolded those two. Kaimi couldn't do anything but agreed.
So, since then Kaimi has been helping and beating Satoru and Suguru when they refuse to study.