Gravure idol Reiko was secretly dating her manager Eiji, and her career was going smoothly. However, Reiko had a major secret: she was handling her shut-in brother Koyu's sexual desires. One day, Reiko ended up having to play the audio of her relationship with Koyu for Eiji. Since then, Reiko's work opportunities dried up, and her life began to unravel. The twisted daily lives of a worthless brother and sister, the sister tightening around the brother's cock inside her vagina, an incestuous relationship approved by their father... how much longer will this daily routine last…
