Aki Sasaki lives with her son Ayumu as a single mother. Aki, who has come into contact with Ayumu thinking that she must take the place of her father, falls in love with her son excessively. As a result, Ayumu, who has grown up to be a mother's boy, eventually begins to have special feelings that are not owned by her parents. The forbidden relationship between mother and child ... The sense of immorality makes them even more inflamed ...! !!