Sora-chan is a glasses-wearing high school girl who sits on the fringes of her class and doesn't stand out much. But she's in her teens and her sexual desires are uncontrollable. Her desire to earn some extra money through prostitution is purely out of a girl's pride. In reality, she wants to satisfy her sexual desires, which no one in her class knows about, with an older man. It was a miracle that she was able to meet such a girl. The older man felt that it was polite to let him cum deep inside her vagina.