really a racist novel, there's a 50-50 chance of anyone being demon but everyone decides that demons are the bad guy and law enforcers are good guys. when demon got powers they did bad things and law enforcers had a sence of justice and even if some demon loots the bank or something, the law enforcers with a "justice" mind decides that all demons are bad. and for normal demons(except MC) leaving their demon layer would be fatel as enforcers can destroy their layer while they're away, so demons shouldn't cause as much troubles as a enforcer would!