Aimi is a wife who lives with her husband Hiroyuki and her father-in-law Toru. Recently, her husband has not been interested in Aimi at all. Toru is the one who helps her to forget her loneliness. Toru was her homeroom teacher when she was a student, and was the ideal man for Aimi. She began to spend more time with Toru than with her husband. And when Aimi found out that her husband was cheating, Kokoro was even more drawn to him. She boldly shook her obscene breasts, seductively exposing her soft skin, and lasciviously aroused her father-in-law's sexual desire...