The Lone Necromancer

The Lone Necromancer summary:

The world is ending. Monsters from legends appear everywhere. They eat people, conquer the streets, and begin to make dungeons in the buildings and subways. If you could choose one job in this decrepit world, what would you choose? For a “necromancer” extinction is my playground and death my wealth.The Only Necromancer / Solo Necromancy ; The Lone Necromancer ; 나 혼자 네크로맨서