Shōtarō Tatewaki is a normal high school student with a serious demeanor hangs around with Sakurako Kujō. Sakurako is an extraordinarily beautiful woman in her mid-20s from a rich family who loves "beautiful bones." The two live in the city of Asahikawa in Hokkaido, and they get involved in various incidents regarding bones.

• Junya Enoki
• Shizuka Itoh
• Kikuko Inoue
• Ayaka Imamura
• Akira Ishida
• Masako Isobe