Strawberry-chan, the real brother, gives his sister a shut-in, Rori, drinks Viagra for women and brainwashs him.

Her younger sister, who has a communication disorder, hides from her parents and uses aphrodisiac rape to turn her into a sex slave's toilet. He lies that he is a tranquilizer and gives him an aphrodisiac and forces him to cum inside his abnormally heated young body! She's a shut-in, but she's cumming incredibly! Even though he is a socially unpleasant person, he screams and writhes! A hell of ascension caused by an adrenaline explosion from a large amount of aphrodisiac! Is this my sister and I a life full of life?