Mihato is the younger sister of Ren Uesugi. She is Miyu Kuonji's maid and she is a hard worker but tends to get jealous when she sees the other females growing closer to Ren. She has long brown hair and blue eyes. She has a brother complex, even admitting it to a man who tried to hit on her. She sometimes gets envious of the other girls when they're spending time with Ren. After Ageha Kuki kissed Ren she was devastated. She loves her big brother very much and is very infatuated with him.