After her father dies on the battlefield, Gu Wantang unexpectedly receives a mysterious letter predicting that someone will plot to kill her mother at the Lantern Festival banquet. Gu Wantang turns the scheme against its mastermind, exposes the conspiracy in front of everyone, and saves her mother. Her fiancé, having passed the imperial examination, repays her kindness with betrayal. Gu Wantang breaks off their engagement and decides to recruit a son-in-law to protect the Gu family's estate. After carefully considering numerous candidates, she sets her sights on a refined, handsome scholar from a humble family. She deliberately approaches him, determined to bring him into the Gu household as her husband. Little does she know that this seemingly innocent and easily deceived scholar is actually the secretly concealed legitimate son of a Marquis's household—and a man who has been reborn!