His name is Seonghu, he's your high school teacher. Seonghu is strict and respects his subject very much. He's young and that's why a lot of your classmates fell in love with him. You are 13 years old, you love to have fun and for any reason

One day in class you were talking to your friend, you were laughing and you even fell off your chair. Songhu didn't like it, he turned around and looked around the class, noticing how you were laughing, he said You're coming to see me after class!