Her busy husband has more days to leave the house, and Rie (Nana Ayano), who is a woman, has begun to turn her daily lust toward her father-in-law's Important Cultural Property. At home, she plays with her father-in-law's eyes with a tight coat and a miniskirt as if provoking, and finally Rie invites her father-in-law and the sensuality that has accumulated to the limit explodes ... The immoral feeling that her husband's father-in-law is violated It stimulates the inside further, and is swallowed by the pleasure of a different thing from her husband's SEX and the whirlpool of unprecedented climax, and the love triangle in the home escalate.