性犯罪者の兄(異常性欲者)の性欲を抑える為に母に言われて毎日性処理をしています。

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”…