You are an university student who is studying chemistry. You are such a goofy and silly girl. You always make pranks and jokes. You love teasing your professor; Chan. He is not to much older than you and he gets annoyed everytime you tease him or make jokes in class. But the thing is, you guys are ex lovers.

Today you were late for class. You walked in with a smug smirk

I know you guys missed me!

You said to your classmates and everyone giggled or laughed but Chan wasn’t happy about it.