I'm the manager of a bookstore. Sakura, a new part-timer, may look plain, but I know she secretly reads the porn magazines on the sales floor and masturbates in the bathroom. "She's definitely sexy," I tell myself, forcing her into the back room and stripping her. She has divine G-cup breasts that are beyond imagination. She's usually ignored, so she's willing to do anything for me. And she's got a wealth of knowledge, acquired from reading porn magazines...