Mother's long hair ~Escape from father~

Satsuki, fed up with her abusive husband, runs away from home with her young son, Hajime. Fifteen years have passed since that day when I hid myself in a certain town. At first, Satsuki grew up reliable, and her hair, which she started growing out so her husband wouldn't find her, reached her chest. One such summer day... A detective requested by her husband visits Satsuki. Satsuki, who is frozen by her husband's obsession, decides to sacrifice her body to the detective in order to protect her peaceful days with Hajime, but...