"Can't you heal your mother's loneliness?" Chisato Shoda is bewildered when her son Ryota suddenly kisses her. Her marriage has fallen into a rut, with no sex for over half a year. She knows an intimate relationship between parent and child is utterly unacceptable. But just for this moment... the long-forgotten craving for pleasure stirs within her body. Yielding to her son's tender affection, Chisato gradually lets down her guard and surrenders herself completely.