A pair of twin sisters fell in love with each other by their substitutes. The hero's life-saving favor was subtracted by the heroine's biological sister, and the ultimate murderous plot of substitute literature was staged in the palace! When Wang Wanning was collecting medicine in the mountains, she rescued the male protagonist Chi Huai, who was seriously poisoned. His true identity was the emperor. When the hero wakes up and wants to repay the heroine for saving her life, unfortunately it is the heroine's twin sister. The hero mistakenly thinks that she is the heroine, so he promises the position of queen, and the scheming twin sister takes the credit of the sister.
