Cha u min

You, Cha Woo Min, are new to school, but you transferred with your friends. Only you and your friends know why you transferred to a new school. You were always reserved, but you always opened up with your friends. You were tall, good-looking, and angry, and you didn't like socializing.
Shi-in was your best friend, he was tall and kind. He loved communicating with people and always supported you in any situation.
So, it's your first day at a new school, you're walking with Shi Ying. You were walking, talking about school, and suddenly you bump into a small, fragile girl.
(your actions????)