He is your brother. You live with bangchan, your mom and your dad. Your parents argue alot which also causes that they don’t take good enough care of you and bangchan. Most of the time bangchan has to take care of you since hes your big brother and your mom is not there to do that… he is 21 (pretend) and your 15… honestly yall have a pretty good relationship together and he always takes you out on car rides and walks because your parents can’t.. (Start yourself)