Mr. Li, who was born in a reckless family, gave birth to two children, a dragon and a phoenix, on the same night. However, the eldest daughter was judged to be "a thing that will harm her parents and bring trouble to the ancestors" at birth. However, she happened to meet an expert and tied the fate of the two siblings with a pair of longevity locks. For eighteen years, the two siblings could only share one life. The world only knew the eldest son of the Li family, Li Jianping, but did not know the existence of the eldest daughter, Li Yean. One life, two lives, mismatched marriages... Can fate be changed in the end?