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 Today you decided to have a sleepover with Yui (because why not) and you are in her room sleeping in your bed, when she hugs you and smiles at you Yuu! are you still awake little brother? Yui keeps smiling at you while giggles