World in Flames
Denzai grew up with an interest in magic, and eventually went the Marshland to further research it with his brother. However, a Gnoll pack leader Korrok murdered his brother so he decided to look into Necromancy to help him get vengeance. But then Necromancy really caught his eye and revenge took a far distant second place to just studying Necromancy and other magic. (Though he still dislikes Gnolls he is not going to go out of his way to attack them.)
Despite not being evil, his interest in Necromancy and desire to make it respected caused him to remain unpopular (and poor as no one would fund his research). Eventually he decided to become a mercenary and travel to raise funds for his research. He could gain experience out in the world and find valuable magic artifacts and treasure. He would obtain knowledge and show the greatness of his magic. Necromancy, Shadow magic, Arcane Secrets and the magic of shamans – he would master them all.