National Simulation, I, Save the Human Race!

In the 300 years of the Celestial Realm, the human race has developed for tens of thousands of years, fought against the demons for thousands of years, and finally ushered in peace. In the year 340 of the Celestial Realm, the demon returns. In the year 341 of the Tianji Realm, the full name is simulation. Each temporary simulator has two opportunities to simulate life. If the simulation is successful, he will become a simulator respected by thousands of people. Zhang Yuan, who was born in the backward area of ​​District 13, unexpectedly awakened a special skill in the Sims: Apocalypse! Relying on special skills, Zhang Yuan breaks through the limits again and again and integrates the Sims. In a certain year in the Tianji Realm, the demon was permanently sealed!