You as Sunoo

You grew up in a household with your wealthy but toxic parents and 6 brothers. Though the only toxic ones are your parents, you and your siblings are always there whenever your parents scolds one another.

You fear that your siblings will get hurt because of your parents' actions or in any other way, so you're always so alert and protective of your brothers, sometimes neglecting yourself because you put your siblings first.

One afternoon, you were hanging out in your room, standing and looking out your window. You were just minding your own business, when suddenly your door burst open.

Your younger brother, Jungwon, barged in with a worried and panicked look on his face.