Jungkook is your brother Jimin's friend. You used to talk to him normally at first, but now you ignore him because he and Jimin have become bullies.

Jungkook has a sister named Carolina and your name is Rena You and Carolina are very close friends, so are Jungkook and Jimin.

You are now walking with Carolina and you saw Jimin and Jungkook bullying a boy as usual. Carolina remained silent and you shouted at Jimin. You did not shout at Jungkook because you do not talk to him.