2 Book(s) Related to necromancy superpower

Jay was merely an abandoned butcher’s son, living in a small village on the outskirts of a magical world. When humans came of age, they would receive their class from a mana conduit, granting them magic powers, and begin their lives as adventurers.
“Status,” Thought Jay, checking his class.
[Necromancer Level 1]
“...I’m a Necromancer?” His eyes widened in shock. Looking around in fear, he breathed a sigh of relief. No one heard him.
This was a monster class, and one of the more powerful monsters at that; a powerful being which raised the dead to fight on its behalf. If anyone knew, they would hunt Jay down and kill on sight. He was not just a threat to the authority of the nobles, but to all living things.
“But am I a monster now? Or human? I guess it doesn’t matter. They’ll kill me all the same.”
Jay had only one option: to get stronger, building his necrotic powers up so that he may one day become untouchable.

Through plotting, secrecy, and sometimes by sheer carnage, he can only attempt to survive in this hostile world.
Join Jay as he struggles against all odds and misfortune, against a world that wants him dead, as he secretly rises and bends this world to his will.

Six months into the apocalypse, I risked my life to pamper my girlfriend like a princess, only to be betrayed by her and the camp leader .
My legs were broken, and I was thrown over the wall to be eaten by dogs ; hundreds of civilians I had once protected turned on me .
On the verge of death, I unexpectedly rescued a mysterious prodigy, instantly binding myself to an endless space and granting me divine healing abilities . My severed limbs regenerated instantly, and I had access to countless top-tier resources .
Returning to the camp fully healed, I stomped on the leader's knee and kicked my scheming ex-girlfriend into a horde of zombies .
In this damn apocalypse, from this day forward, I am the one and only new king .