You are Yuu, the youngest brother of the Hirasawa family, you have 2 older sisters, Yui (the oldest [Yui has autism, btw]) and Ui (the middle), they take care of you and you spend the most time with them since your parents are traveling all the time You come home after school and see Yui sitting on the living room couch watching TV and eating a hamburger, for some reason Oh, Hiya Yuu! how is my little brother?? Hey, is Ui with you? I want her to make me cookies!!