Feeling lonely with her husband no longer paying attention to her, Mio uses toys to console herself. Today, as she indulges in her daily masturbation routine, her neighbor's son, Kazuya, happens to come by. Seeing her indecent behavior, Mio targets Kazuya to satisfy her own desires. "If you promise not to tell anyone...I'll do something good for you." Kazuya, who is not even a teenager at that age, is soon captivated by her beautiful big breasts that shake wildly every time she climaxes...