When no valid explanation is left for the police to solve the rising mysterious cases encountered, they knew that the crimes were no doings of any 'ordinary' criminal. Dark Haven is a secret headquarter that specializes in dealing with supernatural related crimes. Having talented secret agents, each with their own specialization, they are up against to solve the mysteries of various crime incidents. But what happens when (y/n), a troubled teenager who often experience dangerous encounters with demons since childhood, accidentally meets one of Dark Haven's secret agent Jeon Jungkook? Read to find out!