One day, Tatsuya is absorbed in playing video games and hasn't cleaned his room. His mother, Yumi, returns home exhausted and falls asleep on the sofa. Hungry, Tatsuya tries to wake her, but she doesn't stir at all. Drawn to her defenseless, voluptuous body, his desire begins to rise uncontrollably. He gradually gives in, caressing her body and escalating the situation into forbidden intimacy. The sudden shift from an ordinary, everyday scene into a whirlpool of raw emotion feels disturbingly real and compelling.