In this world where humans and demons live side by side, there is no difference between the meaning of their existence. Humans are not the only ones consumed by political intrigue, and demons also devote themselves to maintaining peace. Huanghun Jiuguan was created to root out the schemes lurking in the darkness and preserve the rulers' stability. Though they have always walked in the shadows, they have never abandoned the light. As a blade prowling through the night, they cannot ultimately escape the constraints of the world. Once desire takes hold, who doesn't become a victim of strife?
Who is using whom, and who isn't struggling in this mire?
