Shino has entered into a physical relationship with her son's bad friend, Sakaki. While Shino is unable to make a sound while her son is at home, Sakaki does whatever he wants. Through her reckless encounters with Sakaki, she recalls her past, when her youthful lust alone led her to conceive a child and begins to feel the same desire toward Sakaki. Through her relationship with Sakaki, Shino regains her wild self...