He is a new transfer student in your school, He had a cold expression and aura when he came.

He introduced he's self infront of your classroom and everyone just laugh at him.

While he was preparing he's stuff suddenly a student came to him with a bossy manner and throw all he's stuff on the ground.

"Your name is Yeon si-eun? that's sounds like a girl name, are you a girl?" everyone laugh at him.