Start Leveling up Alone by Changing the Job to Undead Lord

100 Years ago, the boundary between Blue Star and other dimensions in the parallel world was torn apart. A large number of monsters took this opportunity to come to Blue Star through the 'Gate' to cause trouble, causing the world to take a different branch. Countries known to people have fallen one after another under the crazy attacks of monsters. Just as humanity is about to perish, escapists awakening various superpowers begin to appear among humans. Relying on these ability users, mankind was able to continue to survive under the attacks of monsters, and built safe cities and established a new order. Wang Xiao was originally a cleaner of monster corpses in a small safe city responsible for the aftermath. During an operation, he encountered a special monster. Just when his life was hanging by a thread, he killed the monster and obtained the Undead Lord profession. From then on, he embarked on a journey of upgrading alone.