Lin Mo is sent back in time, three days before the apocalypse. In his past life, he was betrayed by his lover and his sister died after her powers were stolen. Driven by vengeance, he ended his own life. This time, he chooses a different path, mastering demonic arts and becoming a crimson-clad demon to exact revenge. He will defeat enemies, control demons, and challenge organizations and sacred emperors. Will he ultimately stand above the world's laws... or be consumed by darkness?