Samuel Welbourne was never meant to live a long and happy life. Since the age of four, Sam has been in and out of the hospital, but now his body is on the brink of giving up. With nothing left to lose, Sam accepts experimental surgery to modify his genes, hoping for one last miracle.
However, when he wakes up, Sam is no longer on Earth, no longer in his own body, and no longer in a right state of mind. As his sense of self is slowly twisted and changed into that of the wargod Ares, he must fight to survive in a new world where he is considered nothing but an instrument to powerful magi.