Miki, a housewife living with her husband and son. In her forties, her sex drive has intensified, leading to fewer nights with her husband and mounting frustration. To attract her husband's attention, she follows a method from a book to boost her pheromones by masturbating. Her son, who has just returned home, catches her in the act. The son escapes upstairs unnoticed. That night, Miki experiences back pain and asks her son for a massage. Then, Miki massages her son. Noticing her son's grown penis, she can't help but stare…
