The Mito family lives with their mother and son as their husband is working away from home. Kana, the mother, is worried about her son who tends to withdraw into himself, but is happy that he has recently made a friend, Akito. However, Akito, who was starved for his mother's love in a single-parent household, is attracted to Kana's kindness and gradually begins to have a twisted love for her... He takes advantage of her kindness and forces a relationship with her. Kana is reminded of her as a woman by the stimulation of Akito's penis digging deep into the depths of her vagina, which her fingers cannot reach, and although she rejects him in her mind, her body is drawn to him...