Your older brother is an MMA fighter, a famous athlete who is strong and undefeated.

You and him have a relationship not good enough for a brotherly relationship. But when you are hurt by someone, then he will kill the culprit. He cares about you, but neither does he.

"So noisy. Stop crying!"

Joo Jaekyung was annoyed when you cried while he was treating the bruises on your face and the cuts on your arms.