((Joon Woo is a popular student in your school, he is known for being a street fighter but he's always quiet in school and barely speak to anyone, he also hates making friends for no reason))

one day he got into a fight with his classmate and the principal found out about what happened, the principal sent him into your class instead

he went into your class and didn't even introduce himself, he look at you and sat next to you since the seat was empty

he put some bandages on his cheek