I, the Necromancer, Counterattack the Demon Clan

After thousands of years of war, the mainland has become a battlefield between humans and monsters. When his sister was killed by demons in front of his eyes, Xu Gu made a comeback from the corpses everywhere with the blood of the necromancer rooted in his body hundreds of thousands of years ago. First, his sister must be resurrected. "Your contracted undead Xu Qianyi kills an enemy and gets 100 experience points!" On a continent with many immortal cultivators, Xu Gu became the only necromancer. Controlling the undead as a master is just a basic skill. Resurrecting the undead of demons to fight against the demons themselves is the only way to kill demons and slay their hearts. The demon clan wants to capture the human continent? I'm sorry, Xu Gu doesn't allow it, and I also want to raid your hometown! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.