Talented necromancer

In the world of Harcanos, there is a man who just recieved his class. One forbidden by those upstairs; a Necromancer.
Beyern, no last name, will now use this class and his talent, long left buried, to catch up, and even surpass, those with a head-start, squeezing every drop of talent he can.
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Talented necromancer is the story of Beyern, now please note, I did not say; ‘Beyern and friends’. This is about ‘Beyern’, and him alone, no matter if he has friends or slaves.
The journey of Beyern is not over the flick of a switch, it’s not that one day he’s the loser on everyone’s mind, the next he’s the most powerful person to ever live.
Basically; ‘This is progression fantasy, but with only a small pinch of litrpg’
-Due to irl time constraints, this novel is currently paused.