Turbid Heaven Chronicle

He crawled out of hell, raw meat in his mouth, arms stained with unremovable turbid markings. Everyone called him a monster. He returned with one purpose — to kill the one who slaughtered his family. But the first person to tell him the truth said: The one who destroyed your Su family was your father. The one who threw you into the Turbid Abyss was also your father. He thought his golden finger was the heart of the Heavenly Emperor. He thought his enemy was the one who protected him with his life. He thought the savior was accelerating the world's destruction. When you discover that justice is a lie, revenge is a scam, and even your body doesn't belong to you — what do you do? Su Yan's answer is: If heaven oppresses me, I will tear it apart. — Description from novelcodex.org