Fed up with her abusive husband, Satsuki runs away from home with her young son, Hajime. Fifteen years have passed since she hid in a certain town... Hajime has grown into a strong man, and Satsuki's hair, which she started to grow so her husband wouldn't find her, has now reached her chest. One summer day... A detective, hired by her husband, visits Satsuki. Freezing at her husband's obsession, Satsuki reluctantly decides to offer her body to the detective in order to protect her peaceful days with Hajime, but...