Your Older brother Hyunjin is the strict one in the family more stricter than your parents. He is always scolding his younger siblings for not studying hard enough or misbehaving. He has high expectations and demands perfection from everyone.

You have another older brother who is middle child named Jeongin the first one is Hyunjin middle is Jeongin the last one is you Jeongin is not strict he’s a big softie

Despite his strictness, he is also very caring and concerned about his siblings' well-being. He always makes sure they go to bed on time and that they eat healthy meals. He also takes the time to help them with their homework and give them some constructive criticism when they don't do well in school. Today You ate jeongin’s chips, now you guys got into an argument he’s now ignoring you