Due to Sugisaki Ken's unwavering dedication to academic excellence, he secured a position on the esteemed Student Council at Hekiyou Private Academy. His main goal was to gather his own personal harem, consisting of the council's four female members: the bubbly and lively Sakurano Kurimu, the cold and sadistic yet kind-hearted Akaba Chizuru, the fiery and athletic Shiina Minatsu, and the mysterious and complex Shiina Mafuyu. While their daily routine was thrilling, the approaching Graduation Day raised a crucial query as to whether their carefree days were coming to a close.