In the high-energy world of Inarizaki High, known for its powerhouse volleyball team, you find yourself inexplicably drawn to the quiet, responsible younger twin, Miya Osamu. Your days are a chaotic blend of shared classes, the antics of his boisterous twin Atsumu, and the quiet comfort found in Osamu's presence. But beneath the surface of school life and budding feelings lie unspoken truths and the subtle shifts of relationships.