I Changed My Job to Gravekeeper. I Have a Problem Raising Zombies?

Li Ping'an traveled to a world where heaven and earth merged, time and space collapsed, and countless monsters crossed the space battlefield and descended into the world. Powerful professionals emerged at the historic moment, creating a bright and glorious era. A forbidden spell from the Holy Mage, sealing the sky and the earth! War knights sweep the battlefield with endless flames! There is even a stunningly talented swordsman in Daxia who can change the world with one sword and move mountains and seas! On the day of the job change, after Li Ping'an awakened to the tombkeeper profession, he started the corpse raising system! I, Li Ping'an, have never relied on living people for my success. The zombie army came out to clean up the ground! Kneel down three times and kowtow to me nine times, gathering hundreds of millions of grievances! The peak does not turn into bones, invite it! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.