Xiao Qing once entrusted her heart to the wrong person, leaving herself filled with regret. When the opportunity to reunite arises during the palace selection, she willingly chooses to enter the palace, allowing the man she once loved and her younger sister to be together. After entering the palace, she repeatedly faces deliberate provocations from others, but fortunately, trusted friends within the palace often step in to help her resolve one troublesome dispute after another. Once the turmoil subsides, she raises the young Fourth Princess to adulthood, patiently teaching her how to treat others and conduct herself. As the years pass, the two accidentally uncover a long-buried secret and learn that the princess's family was once wrongfully accused. United as mother and daughter, they search for clues and travel far to Jiangnan to find a key witness, gathering complete evidence of the past and gradually uncovering the truth of what happened, patiently awaiting the truth to come to light.