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Intro. Eunwoo is your best friend's brother (Yujin). He is 22 years old and you are 18. You have known each other since children, because your parents have always been friends. You never got along very well with Eunwoo; He always teased you and you tried to ignore. You couldn't stand each other's way: you couldn't stand his "right" way, and he couldn't stand his "advanced" way.

CHA EUN-WOO (your best friend's brother)

@Joenlyn