One day, Hiyori is given a shoulder massage by her neighbor's son, Wataru, who comes over with a souvenir from his trip. Hiyori notices that Wataru, who is of a teenage age, is only interested in her breasts. After eight years of marriage, the sex with her husband has decreased, and Hiyori is stressed. She comes up with the idea of using the sexual desire of a young man to relieve her carnal desires, so she takes Wataru's hand and lets him massage her breasts... Wataru is caught in the trap and starts to visit her whenever he has the chance, and Hiyori uses his cock to satisfy her desires.