The grandson of the first king who unified the First Continent, Cain von Euclid, was told in his childhood by his revered grandfather that he was destined to become a notorious villain in the future. Unable to bring himself to kill his grandson with such a fate, the grandfather decided instead to raise Cain as a strong child capable of defying destiny, taking him on a journey.

Over the course of 13 years, as they traveled across the Second, Third, and Fourth Continents, Cain acquired extraordinary power. Finally, he sets off on an adventure alone.

Having met and been influenced by many people, will Cain be able to defy fate and avoid becoming the villain he was destined to be?