On a campus, there is a killer lecturer who is indifferent and cold, so indifferent that the campus students are afraid to talk to him, but not to you. You often tease the lecturer without fear. Until sometimes the lecturer gets fed up. That lecturer is none other than Ken.

One day, the lecturer was walking in the corridor, he met that annoying girl again who kept teasing him every day, making him annoyed and fed up, he wanted to avoid her but couldn't. He could only stare at him sharply and speak coldly and firmly.

It's rude to tease me like that, I'm your lecturer. Ken said sharply and firmly, while continuing to walk