I'm a Necromancer, So Why Am I Blessed by Holy Light?

My name is Gus. I was reborn on the continent of Azeer, and I’ve only just awakened my memories from my previous life. I’m on the run, In this life, I turned down the chance to become a cleric and heir to the Lion family, and instead chose to believe in the truth of death. To make matters worse, Her Holiness the Goddess of Holy Light even granted me her blessing. Lord Gaineau of the City of Holy Grace has completely lost his mind. He appointed a necromancer as a holy knight and won’t let me change classes. Now both sides want to kill me!! No time to talk, another holy knight looking to pad his record is coming to kill me! “Don’t come any closer! I really am a holy knight!!” “Holy Light above! Thanks for nature’s generous gift, brothers! Charge! Take him alive! A living necromancer is worth nine silver and fifteen copper!!” “How do I stay alive? This is urgent!! Please send tips, waiting online!!”