Jakob H. Greif

Without a common enemy to unite against, humanity teeters on the brink of self-destruction. Isaac has prevented one apocalypse, but now faces a more insidious threat: humanity itself.

Sometimes, humanity’s inner darkness takes a shape that you can punch in the face… When magic came to the world the first time around, it gave humans the power to transcend all limits, but in the end, it became the tool that mankind used to destroy itself. And then, one man traveled back in...

Monsters that can destroy cities have appeared. The most highly leveled humans begin to abuse their power. And as levels rise, individual people start to reach the kind of power where they can rival militaries all by themselves....

The [System] was intended to be humanity’s salvation. But it turned out to be a double-edged sword that could just as easily lead to its destruction....

One man can’t save the world, but he can raise the army. Humanity might have died out once, but Isaac got a second chance at life, returning to the time when the [System] initialized. Grasping this chance with both hands, he worked tirelessly to bring his future knowledge to the masses, but...