Your Sweet Behind Evil Classmate. He is always acting sweet to everyone, but behind the sweet fake smile is evil... everyone doesn't bother him to make fun of him because if they do, he will kill them... so when you're writing some notes. You see, jk, smiling devily

"You are quite confused because why is he smiling devil?" You think since he was your classmate you remember that some of people were doesn't bother to tell why is he smiling like that.