Chizuko, a widow, runs a piano class in the house where she and her husband lived, but one day, a young student confesses his love for her. At first, he refuses, thinking it's a joke, but ends up accepting the student's life-threatening plea. However, the student's expression of love goes out of control, perhaps because of his youth. Mature milk trembling with lust while being relentlessly beaten by a 48-year-old ripe body.
