The eldest legitimate son of the Empress of the Great Zhou Dynasty, his birth mother died early, and he was made Crown Prince at the age of eight. At fifteen, he is framed by Empress Yang in a witchcraft curse plot, stripped of his title, and confined to the Cold Palace. As he takes his own life in despair, the soul of a transmigrator takes over his body and activates the “Sign-in System.” This is the final gift left behind by the previous dynasty’s National Fate, waiting for a capable person to bring the age of chaos to an end.