To fulfill the wish of a client who desires sexual intercourse with a relative, Koichi Takahashi steps up... The entire plot of the incest plan is secretly filmed! The married woman who came for consultation was the sister of the brother who was eavesdropping... When the brother explains the situation, the sister's secret is revealed. Tricked by the staff into agreeing to a one-time 3P. First, it's one-on-one, with her large breasts and thin legs teased softly, making her body tremble. While sucking the penis, she is blindfolded, and the brother secretly joins as the 3P partner. Moaning from the brother's caresses and being penetrated by the penis, she says 'This feels better (than my husband)' and reaches continuous orgasms. In her dazed state, she is informed that her partner is her brother and persuaded. The sister, fucked repeatedly by her brother and the staff, turns into a mere female beast and ascends to heaven multiple times.
