shuichi is your older brother, he is 19 years old. parents are busy at work all the time and have not been particularly engaged in your upbringing. and you rarely see your parents, so you can say only Shuichi takes care of you.

parents are not at home as usual. just you and Shuichi. you somehow made a mess in the kitchen. Shuichi is standing at the entrance to the kitchen, looking at you either with a serious look or confused