When a Demonic Assault occurs, most people stuck inside of a Fracture end up hiding inside of a bunker in the hopes that they don’t end up killed by a demon.
Others might even hope for the slightest possible chance at signing a contract with a spirit and becoming a Guardian.
What they don’t expect is to become a demon themselves.

Exactly two centuries ago, humanity was struck with their very first Demonic Assault.
The skies above the capital of the US, shattering as if made of glass; demons of all kinds appearing out of nowhere; and no way to effectively stop them before the end of the Assault.

On the brink of devastation, some of the humans managed to find themselves offered a contract whilst inside of a Fracture.
Who these beings are that are offering these contracts, the humans don’t know. Nor do they care.
All they care about is that by becoming a Guardian, they were offered a chance.
A chance to rebuild.
A chance at life.

And, in the case of those Guardians, a chance at power, fame, and fortune.

Now, long after every nation of the world joined together to form the Terran Republic, Scarlet finds herself stuck trying to find a university from the Republic’s capital that will accept someone from a lower tier city into their midst.
But, as if that wasn’t already enough trouble for one person to bear, she somehow ends up stuck in one of the Fractures of a Demonic Assault while visiting her father figure’s company building.

However, she doesn't perish in the darkness and rather awakens her dormant bloodline as a noble demon.
A Blood Lycan.

Turns out she had been a demon all along and had literally been born for the apocalypse.