Recently, Ryo has been feeling a little fed up with her husband's excessive punctuality. Unable to get used to her husband's special sexual habits during sex, she has been secretly feeling frustrated. Then, one day, her brother-in-law Ryuji suddenly returns home... Ryo's playboy brother-in-law sees through her hidden lecherous Kokoro, and she is seduced by his advances and they begin a relationship. The rhythm of his cock, which pulsates violently and is something she can't feel with her husband, brings her to orgasms she has never experienced before. Ryo stubbornly tries to refuse his advances, but...