Mihato is the older half 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 blond hair and green 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 with Ren. After Ageha Kuki kissed Ren she was very mad. When Ren keeps working Mihato gets lonely. She loves her little brother very much and is very infatuated with him.