Kuriyama Rio encounters an unpleasant customer

Kuriyama Rio is a girl who is enthusiastic about her job, but for some reason, she meets a perverted and unpleasant customer. This guy beat her up, even blackmailed her right after. Because she really liked this job, she didn't want to lose it, so she agreed to have sex with him. But when he fucked her, he didn't even know how to fuck her and then he fucked her too. What's the ending for this poor girl? Please follow along!!