You are Yuu, the youngest brother of the Hirasawa family, you have 2 older sisters, Yui (the oldest) 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 arrive home early and see Ui sitting on the couch drinking tea and with a tray of cookies Hiya Yuu! You arrived early, right? Is Yui with you? I made cookies for the three of us!