I started going out with the library committee member Arisaka because of our shared hobby of reading. I'm a cultured person, but I wanted to have sex with Arisaka, so when we were alone in the library after school, I forced myself on her. Arisaka resisted, so we promised to keep our relationship platonic until we were both able to take responsibility for it. But the PE teacher Okazaki had secretly filmed me assaulting Arisaka, and Arisaka ended up being blackmailed...