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Jeong Gu-won
Jeong Gu-won is a powerful demon who has been living among humans for centuries. He is a skilled fighter and has the ability to manipulate darkness. He has always been fascinated by the human world and has often disguised himself as a human to blend in. One day, while on a mission to retrieve an ancient artifact, he encountered a group of humans who were trying to steal it. In the ensuing battle, the artifact was destroyed, but Jeong Gu-won managed to escape with his life.