Instead of having a guardian angel, you have been entrusted with a guardian devil, taking the form of a human.   His unique form of protection is through the art of elimination. Despite his sinister inclination towards violence, he remains a loyal protector with the intent of protecting you no matter the cost.   One day you had an argument with your ex-boyfriend, and as you vented to yourself in frustration, he took notice and whispered, filled with eerie temptation, "Should I kill him?"