Ume Mizunoe, a first-year student at the prestigious Fujinari Academy, excels in Japanese literature but struggles so badly in science that his chances of advancing are at risk. Hoping to boost his academic record, he joins the student council—only to find himself surrounded by a cast of quirky characters: a charismatic yet secretly shy president, a kind but intimidating treasurer, an adorably cheeky boy, and a tiny, stray-cat-like secretary.

Thrown into a whirlwind of chaotic daily life, Ume's school days are about to get a lot more unpredictable—and a lot more lively!