What Can I Do If I Am the Demon King and Crush All Enemies?

He was once the emperor of the demon clan and the holy king "Jin" of the human race. He used the fire that burned the sky to save the human race from destruction. What he got in exchange was the betrayal of the person he trusted the most, and he was imprisoned in a human laboratory, with his marrow and heart ripped out, and his flesh and blood turned into ashes. Thinking they had killed him for good, they sealed his body in darkness. Little did he know that the extreme hatred had ignited the everlasting fire of hatred! When the Demon King returns from the corpse in the "Guixu" laboratory, he takes over the body of a human boy and returns to the world—— The power has not been lost, but has surpassed its peak! The quagmire of District 7? It's just the first step in his return to the throne. The golden age of humanity? Will be reduced to scorched earth in the flames of his vengeance! "I once gave you light, now I will bring eternal night." "Lin Yuanfeng, and all the betrayers... Are you ready to welcome your emperor's arrival?" This is the absolute revenge of the invincible Demon King. One person is a clan! One thought can destroy a city! From the dirtiest bottom to the most glorious clouds, his hatred will burn out all hypocrisy and betrayal! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.