Chikan Shita Joshi 1

In his late twenties, our protagonist is a typical businessman without a significant other. When he rides the train every day, he sees a pretty high school girl. She's well-built, with a well-defined waist and hips. He wishes he could marry someone as beautiful as her... She's given up on trying and accepts being raped or penetrated because of her slender physique and gentle demeanour. That's all she's ever been taught or experienced. On a train one day, our protagonist assaulted her. He took her to a motel for sex when she didn't resist. This is the first time she's had sex like this. As a result of that encounter, she learned how fantastic sex can be, and he learned about her family-oriented mentality, her beautiful tits, and her dirty girl tendencies. When they fell in love, their sex lives took off.