Recently, Aiko has had to masturbate every day to quell her desires. Her husband is busy at work and won't be coming home today either. The longer they go without sex, the more intense Aiko's masturbation becomes. She just wants someone to hold her, no matter who it is. Just as she is starting to feel that way, Aiko is attacked by her son's friend, Kazuya, who has become aroused after seeing her masturbating. She rejects him, saying that it is not an acceptable relationship, but at the same time, Aiko's body, hungry for a man, reacts violently to Kazuya's caresses...