H02142 Chu Shite Agechau Ep 1: Akira's Cure

Segawa Akira is caught masturbating by his older sister Yuu, who helps him relieve himself. Later, Yuu consults a physician, Tachibana Kimiko, who says Akira has an illness that can only be cured by sex with him. Thus Akira begins a sex-filled life with his sister, the doctor, and childhood friend Takamori Sana.