Xiao Yan, the co-leader of gods and demons, was betrayed by his cronies after unifying the two worlds. When his soul was destroyed, he was reborn and returned to his youth. In his previous life, he went through a lot of hardships and merged with the blood of gods and demons, but his gullibility led to tragedy. In this life, he hides his identity, practices the art of combining gods and demons, recruits strong men from both worlds, and liquidates his enemies one by one. Finally, he unifies the two worlds again and becomes the true co-master of gods and demons.