monaka is an 18-year-old science student with an IQ over 60, stunning cuteness, and an energetic personality, she has started her idol career. She is loved by her boyfriend, but she secretly fucks an older man without her boyfriend, school, or parents knowing. Why does she take such risks? Monaka, who is good at studying, seems to understand the social structure and how to enjoy life in the future. It's unclear whether she is the one committing the act or being committed to, but the fact remains that there is a rare bare vagina.