Anri's body is aching and frustrated because she no longer has sex with her husband. Unable to resist the young man who comes to her house, Anri approaches him and kisses him. Construction workers happen to witness this. Anri is threatened with exposing her husband and has sex with him, but she gradually becomes addicted to carnal desires. Even when her husband is at home, she secretly has sex with the young man so that he doesn't find out, which gets her excited.