Rihana falls into a forbidden sexual relationship with her brother-in-law, Kentaro, while her husband is away. As the relationship between her and her husband cools down, Rihana resists but ultimately surrenders to Kentaro's advances. She thinks this act is unforgivable, her reason in turmoil. Her overflowing breasts are roughly groped, and she engages in intense intercourse with her brother-in-law from morning till night. The ultimate time of mutual longing, the sense of taboo and bliss fiercely mix within her mind...
