Eight thousand kills. Seventy years of work as an assassin. One equal. Elijah has executed countless missions in his lifetime, and succeeded in all but one. His greatest rival and fellow assassin, Avery, has eluded his bests attempts to kill her for decades. Both tasked with eliminating the other, the two have been locked in a deadly dance for years. But, as they prepare for one final confrontation, victory is stolen from both of them.

Bound together by their mutual hatred and time of death, the two are reincarnated into the world of Alpha 13-A and their souls linked together. A mysterious force intervenes in their revival, allowing them to keep their memories and abilities. In order to survive and rise to the top of this new world, the two must put their quest to kill each other on hold. This realm has seen monsters, demons, and incredible magic, but it's never faced the might of the two greatest assassins in the history of earth.