To fulfill the wish of a client who desires to have sex with a relative, Koichi Takahashi steps up... The entire incest plan is captured on hidden camera! A brother wants to have sex with his sister, whom he has seen as a sexual object since they were young. Director Koichi Takahashi responds to this request. The sister falls in love at first sight with her brother's friend and successfully marries him. Now, 14 years have passed, they have children, but the sister is troubled by her husband's infidelity and consults her brother. There, the brother introduces Director Takahashi as an expert on married women's troubles. Under the pretense of teaching methods to win back her husband, the sister is given practical lessons in seduction. As she caresses the director and has her senses stimulated in return, her desire grows uncontrollable, and she eagerly seeks his cock, moaning loudly and climaxing repeatedly. Later, she practices seducing her husband with another man. Blindfolded, she has sex without knowing her partner is her brother... Even after the truth is revealed, she continues to climax wildly on her brother's cock.
