Wasteland Emperor

In the year 337 of the Wasteland Calendar, radiation dust blots out the sun and mutated beasts run rampant. In this world where human life is as cheap as grass, the only weakness of the底层镇魔人 Lu Chen is his sister, who suffers from genetic collapse syndrome. A purification agent requires a Xuan-level evil core, a price he could never afford even if he risked his life. Until one day, during a mysterious domain expedition, he unexpectedly awakens the [Ancestral Dragon System]. As long as he kills, he can level up! From then on, a fearsome tyrant appears in the wasteland. "Since this world doesn't let people live, I'll slaughter through the wasteland and carve out an eternal pure land for my sister!" [Decisive killing + No saint complex + Sister-loving maniac]