Modern surgeon Elena Wen travels to ancient times, is forced to marry a wealthy merchant, and flees. She encounters the injured, poisoned Emperor Yuan Hui, saves him with modern medical skills. After entering the imperial palace, she thwarts conspiracies, resolves crises, defeats schemes of Prince Philip, her stepmother and stepsister who covet the ancestral treasure map, exposes villains, and eliminates chaos. She is conferred the title of Empress, and spends her life with the emperor.