What will happen to my sister if she goes on a business trip for too long?

Momojiri Kaname was raped by his brother-in-law while he was not paying attention. Although he fought back fiercely, he was unsuccessful. Day after day, this girl was fucked non-stop by this brother. He was like a beast that had been starved for a long time. He brought this girl many new things, things she had never thought of when she had sex and got so high. How does this secret love affair develop?.. We invite fellow homosexuals to watch this good sex movie!!