Monaka-chan is an 18-year-old who has started an idol business with her overwhelming cuteness and energetic personality, even though she is a science girl with a deviation value of 60 or more. Although she is a third-year student who is loved by her boyfriend, there is a secret that she has sex with her uncle in person without telling her boyfriend, school, or of course her parents. Why take such a risk? Monaka-chan, who is good at studying, seems to understand the composition of society and how to enjoy life in the future. I don't know if I'm raping or being raped, but there's just a rare raw vagina there. That alone seems to be the case.