Through hard work and outstanding grades, Sugisaki Ken managed to secure a spot in the coveted Student Council of Hekiyou Private Academy. There he confidently pursues his scheme to form a personal harem with the four other council members: the exceptionally youthful president Sakurano Kurimu; the composed yet delightfully sadistic secretary Akaba Chizuru; the fiery and tomboyish vice‑president Shiina Minatsu; and the fleetingly gorgeous yet intricate treasurer Shiina Mafuyu. Each day has been a whirlwind of excitement, but the Graduation Day threatens to bring an end in the future to their carefree final days for all.