Misa Kyo, a housewife living with her husband and their college-student son, begins masturbating after reading a magazine article claiming sexual activity can keep one youthful. Naturally gifted with a squirting orgasm, she repeatedly soaks the tatami mats. Her husband notices and takes the opportunity to reconnect intimately after a long dry spell. That night, their son returns home from work and catches them in the act. One day, while the son drinks alone in the living room, Misa joins him for conversation. Drunk and overwhelmed, he suddenly pins her down and reaches into her crotch. Misa experiences a powerful squirting orgasm from her son's hand job. An intense episode where family bonds and raw desire collide.