Okuyama, a subordinate, misses the last train and ends up staying at his boss Ichikawa's house. There, he is greeted by Ichikawa's wife, Kaori. Kaori shows off her voluptuous body and teases the timid Okuyama. Unable to sleep due to her lewd techniques, Okuyama peeks into the couple's bedroom and finds Kaori masturbating in front of him... Okuyama is surprised, but she doesn't care that her husband is sleeping next to her, and plays with his cock, enjoying the intense pleasure of the young man...