My girlfriend is a shy, elegant girl with a penchant for literature. She doesn't stand out in class, and I was drawn to her shy, earnest personality, so we finally started dating. We hadn't even held hands yet, and it was supposed to be a very innocent relationship. But when I invited her over to my room for the first time, she suddenly started masturbating while still in her school uniform. Although she may look elegant, she was actually a masturbation maniac, obsessed with it. At first, I was just shocked...