The twin sisters of the Miyanishi family who are too well-reputed in the neighborhood, but if you turn around, your love and hatred ...! And finally, the unexpected nature of my sister who was a clean commandment was exposed! Hikaru MIYANISHI

His sister Hikaru thought of it quietly. My sister is cheerful, bitch and social. Even though they are twins, their character is different. Hikaru's favorite is the popular influencer Kouki. She is a sex friend with Kouki! "I want to be held by Mr. Kouki!" Hikaru is a lonely delusional masturbation. His older sister, Hikaru, became her younger sister at one point. The kouki did not realize that it was a spoof, and confused from there the parallel (?) SEX is the first time you have sex!