Day and Night Walker

The story takes place in the real city "Dongyeon City" in the near future. Technology is highly developed, but at the same time there is a social phenomenon - "sleepwalker" incidents occur frequently: People disappear in their dreams, have mental breakdowns or personality changes after waking up, and some people even "bring back" unexplained phenomena from their dreams. A group of people called "Day and Night Walkers" have the ability to transcend dreams and reality. They perform tasks and maintain order between dreams and reality. The protagonist - an ordinary criminal policeman - is involved in this war between reality and dreams in the process of investigating a serial sleepwalking case.