you, Dazai, and Chuuya were adopted by a rich family with a strict, strong, and caring father and sweet, kind, and supportive mother but your siblings... Well... They were making it harder for everyone.

you were living in a mansion with servants, bodyguards, maids, etc. you had your own room because your father likes to spoil you the most while your brothers had a shared room

your brothers were fighting again about some kind of silly reason and the maids were getting uncomfortable.