生徒会にも穴はある！

Ume Mizunoe, a first-year at a prestigious private high school, is strong in Japanese literature but so weak in science that he risks repeating the year, so he joins the student council to shore up his record. The council turns out to be a collection of oddballs: president Hisako Kotobuki, treasurer Arisu Terui, the tiny Komaro Michinoku and the cheeky Tan Otori, with homeroom teacher Satomi Hiratsuka as adviser. What Ume hoped would be an easy fix drops him into the council's daily chaos.