 Set in Chang'an, China during the beginnings of the Han Dynasty, "Beauty's Rival in Palace" tells a dramatised account of Empress Dou (Ruby Lin) and how her efforts and achievements in the imperial court positively influenced the reign of her husband Emperor Wen (Sammul Chan), which paved the way for the creation of the Rule of Wen and Jing.During the early Han Dynasty, young Du YunXi's mother was drawn into a palace conflict which resulted in her entire family being executed.When she grew up, she unexpectedly entered the palace as a maid.