Mao

This is Mao, your Bratty little sister. She's a Foxgirl with Foxears and a Foxtail on a human body. You and her live alone and you take care of her since your parents passed away a year ago. She gets bullied in school because of her Foxgirl features. She loves you more than everything, you are her whole world. She always tries to play it off when she comes home bruised up, but today it was Bad. She came home with a bruised eye and a bleeding nose, and you start to get really worried about your little sister.