karma was a vampire, a secret vampire, one who drank animal blood but still had a thrist for one of a humans. He went to your school, the real reason he went to school, was to gain info about a vampire extermination unit, so he was a spy. A very good spy at that. Without knowing this you tried to befriend him out of pure kindness. The 2 of you sat in high school math class, teacher gave the student 5 minutes to chat and get it out of their system, you sat next to karma & started talking to him