Yukihime Tsukamoto, a high school student, had her body transferred to Hino Kahoko by accident. She met Lily, recovered her violin, and met her long-lost friend Azuma Yuzuki in Hoshizou. There are also the sultry Ren Tsukimori, the confused Shisui, the sunny Huohara, Tsuchiura... How will she start her new life...