Absolute Necromancer

[By the studio that brought you Standard of Reincarnation!]
 
The tower. An unknown place with many rapid changes.
Ten years later, I reincarnated into the body of a boy who lives on Earth in South Korea.
“The guy who backstabbed me and the one above him… I’m going to rip into them.
” The person who reached the top as a necromancer and achieved the class above that, Spirit Master Cha Jinhyuk. As the “All-Master,” he will take his revenge by climbing the tower as a necromancer.