The tragedy of an uprising of thousands years ago was the beginning of a dispute that never ended. Humans, who considered the race of wizards to dominate them, began to kill the children of wizards without exception. This made them separate themselves from humans, securing their children. But a traitor messes things up, makes them withdraw farther away from humans, creates Dowonkyung, a special area for wizards. A thousand years passed, Dowonkyung became a safe and pea

There was a case of serial murder in a city. The victims were killed in the same way, namely strangled and made like suicide. All victims also had relations with each other, making the police suspect that the killer also knew them. And a survivor said that before the killer in action he would sing to appease his victims. Kim Wonshik, the young police detective, found a CCTV recording at the home of one of the victims, and identified the perpetrators quickly. He is Jung