Revenge Of The Dark Hero

A hero, more like a minion. Forced to be the hero and kill the demon lord. Edmund White was trained since he was five, was forced to under go harsh conditions by the noble to kill the demon king. Rather than killing the demon king he made a deal with the demon king to let him live if he will train him to become the new demon king to wipe out the nobles. His hatred to the nobles was far greater than all the demon kings throughout the history.