I Am Possessed of Heaven-Defying Demonic Powers, and the Demon Emperor Was so Frightened That He Cried

[System + Decisive Killing + Dynasty + Non-pressure Realm + Demon Slaying + Merit Demonic Cultivation] Also known as: I am a demon-suppressing guard, why do I kill gods? Li Chenzhou traveled to a world where demons were rampant and awakened the system of merit and becoming a god. As long as you kill demons and eliminate evil, you can gain merit and improve your cultivation. But the skills and treasures given by the system are all magic skills. As he continued to practice, his awe-inspiring righteousness suddenly became a monstrous demon. Li Chenzhou didn't hesitate, just use the magic power as long as it's easy to use. He used the most evil magic power to kill the most terrifying demons, behead the gods in the sky, and extend the destiny of the human world for a hundred thousand years. … Many years later. Demon Emperor: "Is this a righteous method? Who is the evil devil?" Demon Ancestor: "How come he, a human being, has more demonic energy than me?" Empress Dayin: "Li Chenzhou, you are my king of the kingdom and the man behind me." Li Chenzhou saw millions of demon soldiers and generals approaching the city. He raised his hand and waved his demonic power, splitting thousands of miles of demon clouds with one strike, stunning the whole world. "I'm just going to practice kung fu, okay? But... Using magic kung fu to kill monsters is really useful." … … The introduction is weak, move to the main text