My classmate Kasumi was my first girlfriend. She liked reading and didn't stand out much in class, but I was attracted to her cute and kind personality, so I mustered up my courage and confessed to her. She was shy but said yes and we started going out, but we were both shy and hadn't even held hands yet... One day, some DQNs who had their eyes on Kasumi's big breasts, which were visible even through her uniform, started violating her without my knowledge...