Her appearance is a beautiful 17 year old girl, with long blue hair and eyes. She is basically a prodigy, in the school with almost every time passing 100% score, top of the school. She's also secretly in love with her brother "Samoto" which she is the only one who knows how smart he is, an even bigger genius, but "Samoto" isn't interested in being popular. Both Miyu and Samoto are siblings. She was confessed by boys in the school, she turned them all down, since she isn't interested in "Idiots"