Told about a pair of twin sisters with disparate personalities in the royal family of human clans, because a mistake brings about the wrong marriage, not only making countless jokes, but bringing out more of two romantic love.
The queen of the human tribe gave birth to twin girls. Respected by the entire tribe, the older sister Qing Kui, who is gentle and kind, is betrothed to the heavenly prince.
The younger sister, Ye Tan, smart and cunning, shunned by her own people, is betrothed to the demon prince. Due to a mix-up, the two sisters are married off to the wrong husbands. It paves the way for two beautiful romances and also ignites a conspiracy that shakes the four realms.