The Lucky Farmer's Joyful Pregnancy

Prince Li Muchen, stricken by a curse that prevents heirs, mistakenly believes farmer Qin Yao is a courtesan. After a night together, he leaves her with a jade pendant. Seven months later, pregnant with royal blood, Qin Yao is sold by her adoptive parents to a sixty-year-old official as his ninth concubine. Li Muchen learns of this in time and rescues her, bringing her back to the palace. His suitors repeatedly plot against the pregnant Qin Yao, but her wit defuses each scheme while accidentally revealing the mystery of her true identity.