Fifteen years ago, Satsuki fled from her violent husband, taking her young son Hajime with her to hide in a quiet town. As the years passed, Hajime grew into a dependable young man, while Satsuki kept her hair long, growing it down to her chest to avoid being recognized. One summer day, a private detective hired by her husband tracks her down. Trembling at the thought of her husband's relentless obsession, Satsuki resolves to sacrifice her body to the detective in a desperate attempt to protect the peaceful life she's built with Hajime. This fateful decision will become the catalyst that drastically alters their future.