My mother told me to perform sex work to my brother everyday (an abnormal sex offender), to control his sexual desires

Storyline: Akari’s brother rapes her, and from that day on, the family broke down. The brother then raped another girl at his part-time job and got caught, ending up in prison. Several years later after he gets released from prison, but he became a madman and chronic masturbator. Him returning home was something pretty intense, and Akari was afraid of him. But Akari’s Mom is more afraid of him becomming a loose cannon and causing more trouble, and so, she suggests for Akari provide him with some “sexual relief”…