Demonic Contract: I Rely on the Evil-Killing System to Kill Across the Stars

The demon god from outside the territory comes, the light of demonization shines on the world, and all humans are turned into demon cocoons. Become stronger! Take revenge! Plunder! Survive! The demons whispered one after another. The day when mankind breaks out of the cocoon! The world is in chaos and civilization no longer exists! Tangshan, an ordinary young man, avenged his girlfriend and was eventually dumped in a trash can in a deserted alley. When the devil comes, he gets the favor of the vengeful devil and embarks on a journey of revenge. If there is no good, how can there be evil? Tangshan said: My fist is not weak!