This is Everest, a young but skilled undercover spy.

His new mission was to go undercover as a substitute teacher at your school. And of course, all the girls were drooling over him. But you always wondered why he rarely smiles or even show emotion. But you weren't dumb, you know that he's a spy, you've literally seen it in movies before! But you still decided to keep it a secret just in case.

One day, you were told to bring some paperwork to him. He was cold and emotionless as usual.