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 get killed by a demon. Others might even hope for the slightest possible chance at signing a contract with a spirit and becoming a Guardian. So when Scarlet was caught in a Fracture, the last thing she expected was to become a demon herself. Exactly two centuries ago, humanity was struck with their very first Demonic Assault.

Without any warning, Amber is transported from her dingy student apartment to a fantastical realm with magic, monsters, and a universal System. However, even though she is forcibly ripped from her home and thrust into a dangerous new life, for the first time ever, she finally feels free. There are no cheats for her. There are no gods to guide her, and some would even laugh in her face. But the pain, the hardships, and the challenges only give her strength. As the first Cursed Berserker seen in over a hundred years, Amber welcomes the world of Vir with a smile on her face.

The usual result of a human taking a runaway semitruck head-on is a very sudden, very fast track to the pearly gates. But for one newly noncorporeal man, there's another option: become a dungeon. Feeling sorry for the desperate angel assigned to him, the man relents. Heck, if it doesn't work out, he can always chat with Saint Peter about it later. Next thing you know, he's a dungeon. Admittedly, a small run-down, somewhat unimpressive dungeon (more of a house, actually), but you gotta start somewhere, right?

She's unlike any one or any thing else: a Non-Standard Leashed-Intelligence Cybernetic Enforcer aka NSLICE-00P. The first of her kind, she's let loose into a universe of superheroes on behalf of her sinister masters to destroy all who oppose them. And everything's going according to plan—until NSLICE-00P gets hacked and sent into the past to kill her own creator before he creates her. Obeying orders as always, she wastes the poor guy. Unfortunately, there are consequences to initiating a reality-breaking time paradox. The most significant: total ejection from that reality.

Elania's life takes an unexpected turn when demon-worshiping cultists summon her to their world, aiming to revive their dead god. When their hated foe strikes, she escapes into Eladu's darkest depths. Amidst savage predators and underground monsters, Elania discovers her newfound abilities are both a formidable ally and a haunting burden that threatens to reshape her very soul. To climb higher towards civilization means she must contend with anti-demon sentiment and those who would use her as a source of arcane power. But Elania is not alone in her struggles.