Hinako, who runs the apartment manager's job with her husband. However, she barely converses with her husband who wanders around, and her only conversation partner is her neighbor Hiroyuki. One day, when she invites him to dinner and he massages her shoulders as a thank you... Attracted to Hinako, Hiroyuki immediately loses control and pushes her down the moment he touches her skin. "I'm just an old lady, are you really okay with that?" Hinako hesitates, but the long-awaited stimulation of the penis awakens the sexual desire hidden within her...