Hundred Battle Green Armor

Ye Li was transmigrated into a zombie world and acquired a zombie synthesis system.
Two level 1 zombies can be synthesized into a level 2 zombie, and the synthesized zombie is 100% loyal to its creator.
The higher the level of the zombie, the more attractive its appearance.
Zombies possess exclusive skills such as the Earth-Shattering Fist and the Deadly Triple Ghost Sword.
Zombies also produce zombie treasure chests every day, which contain valuable items.
After obtaining the super synthesis system, Ye Li began crazily synthesizing zombies in this world. With the system in hand, I reign supreme!
Zombies, tremble in awe! I, Ye Li, have descended! 

Apocalypse: God-level Zombie Synthesis System

After a few more days, the Apocalypse Legion had led the zombie army to Sword City.

Gao Ling and Ye Li stood together.

"Deputy sect master, there are millions of zombies outside Sword City. How did you do it?" Gao Ling looked at Ye Li curiously.

Ye Li smiled faintly. "Because I am the Demon King, Ye Li."

Gao Ling was stunned. Wasn't this answer equivalent to not answering?

"Come with me to the outside of the Sword City," Ye Li said slowly.

Gao Ling nodded. Of course, she was willing to be with Ye Li. Not to mention outside the Sword City, she was willing to be with Ye Li in any place.

Then, Ye Li and Gao Ling went out of the Sword City.

At this moment, the outside of Sword City was already full of zombies. It was like a black cloud pressing down, making one's scalp tingle.

Even Gao Ling, the eldest daughter of the Sword Sect, had never seen so many zombies.

Synthesize of Millions of Zombies