In the previous life, the heroine's family was politically framed by the hero's father, and the whole family was imprisoned. Finally, the whole family died mysteriously in prison. The heroine was reborn as the hero's childhood sweetheart, and the fiancée returned to seek revenge and clear the name of the family. However, because the heroine was burdened with the family's blood feud, she still found evidence of the hero's father's rebellion (privately engraved jade seals, privately made dragon robes and armor). In the end, the heroine successfully avenged the family in her previous life. After the hero learned that it was the heroine who caused the destruction of his family, he completely collapsed in the face of the dilemma between his family and his feelings for the heroine. Finally, he committed suicide in the family ancestral hall just before the imperial army surrounded the family mansion. In the end, the female protagonist silently held the male protagonist's body, lit the ancestral hall on fire, and died in love. In the last scene, the second male lead collects the ashes of the male and female lead and builds a tomb, then rides to the Mobei Royal Court to follow the second female lead's footsteps. Finally, I heard that someone in an unknown town met the former owner of Xiaoyu Tower (second male) and the princess who was getting married to the daughter of King Zhao (second female).