The family was tragically implicated, and the five sisters were forced to separate. The whereabouts of the eldest sister were unknown, the life or death of the third sister was uncertain, the fourth sister was living a life worse than death in the palace, and the fifth sister was nowhere to be found. After learning about it, the heroine searches for her sisters. She encounters many setbacks along the way, ups and downs, and finally ends up separated from the world. They are not afraid of life and death, and their love for sisters is deep. Love is the only one in the world.