For centuries, the powers of Heaven and Hell have been at war, locked in a perpetual stalemate. Fifty years ago, the war spilled out on Earth and the last modern age of man ended. Humanity now finds itself at the brink of annihilation, barely surviving in small pockets of civilization scattered across the globe. But even in the direst of circumstances, the human spirit lives on.

Now, in this post-apocalypse, humanity has but one choice: resist or die. In order to combat the forces of Hell, man has learned to fight, training from their youth to hunt the demons that threaten their very existence.

Twenty-five years ago, a demon hunter dared rise against an ancient demon family, the Saligia—the Seven Deadly Sins—and was cursed for her defiance. The curse appeared in the guise of an innocent: the huntress’s own daughter, Ardentia, who had been born with a demon soul attached to her own.

In the present day, Ardentia, now grown, seeks to free her mother from her curse by hunting down the demons responsible. But the road ahead will be difficult now that the demon within her has awakened. Trusting him is dangerous, especially when he can turn on her at a moment’s notice. Others have warned her that succumbing to the demon will be her own downfall.

Now Ardentia must decide what she’s willing to lose: her mother’s freedom or herself.