The worst thing about the end of the world is we did it to ourselves. Isaac Thoma lived to see the last handful of survivors defeat the demonic champion. He is now alone, his past in ashes, the last and most powerful human on a blighted Earth. But what if he could go back?

Hurled back in time, Isaac has one chance to change it all. A chance to warn humanity of their impending doom. A chance to stop the [System] before shortsightedness and lust for power can render humanity extinct. Facing malign deities, demonic hordes, and the unstoppable march of human greed, Isaac will give his all to prevent the end that has already happened on the day the world became quantified.

In the year 2107, the world has both made astounding leaps forward and reduced humanity to its most basic existence. While the megacorps and those who rule them enjoy lives of extraordinary comfort and ease, most people barely scrape by, doing whatever they can to keep going.

Juliet Bianchi is one of the latter. She works cutting metal in a scrapyard and doesn't have much to show for it except for a small group of equally bereft, fiercely loyal friends. Still, she maintains a bright disposition, possessing more hope and optimism than anyone would expect her to—and she's going to need it . . .

When Juliet stumbles upon what looks like a botched kidnapping, the victim dispatches his abductors and lives just long enough to give her a stolen AI chip. This gift soon transforms Juliet from a worker bee into a killer queen. Armed with far more power and skill than she can comprehend—let alone control—she finds herself drawn into a shadowy world where survival itself counts as victory.

Juliet has never been one to push people around. But when it comes to fighting the corrupt corporate overlords, she's more than happy to push back.