The girl was filled with Kokoro about sex, a unique adolescence. She had just learned about sex, and wanted to feel better, experience more with more people, and learn more ways to play that she hadn't known before... But she was too embarrassed to tell her friends. She was afraid that people would find out how lewd and perverted she was. She found someone who would keep her secret and fulfill her desires. It was a lustful middle-aged man she met on an app. The exhilaration of having her immature body played with and developed by different men every day in a suspiciously dark sex room... a secret she couldn't tell anyone... the sense of freedom of being able to expose her sexual desires... a page from her youth, when she was more into sex with perverted old men than club activities or hanging out with friends after school.