Tatewaki Shoutarou and Kujou Sakurako. Shoutarou is a normal high school student with a serious demeanor who likes to show off his girlfriend Sakurako. 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.
Manga adaptation of novel series with the same name.