Emmeran grew up as the adopted child of the village hunter. When the village fell on hard times, things changed and his adoption became his chains. As the threat of demon invasion from the eastern mountains becomes a reality, Emmeran is forced to reexamine who he is and who he wants to be in a world that is becoming exceedingly dangerous.

Catlia is a Succubus who knew nothing of the world beyond the labyrinth of caverns in the eastern mountains which she called her home, so when the Demon Lord united the various factions of demons and led them toward greatness, she couldn't help but be thrilled at the possibilities, but will her excitement survive the reality of victory or will she find herself fighting her own personal demons?