At the Spring Outing Banquet, Lin Wanying, a daughter born to a concubine, is set up by her legitimate elder sister, Lin Qiaoyan, who deliberately passes her a peony originally gifted by Young Lord Qin, hoping to humiliate her. Lin Wanying cleverly turns the beloved dog Tuanrong of Princess Henghua into her way out of the predicament. Unexpectedly, her quick thinking makes Young Lord Qin jealous, and he gives her a jade pendant, establishing a marriage betrothal. After discovering that Qin Huan cannot let go of his past feelings for her elder sister, she enlists the help of the princess and the empress to break off the engagement. By chance, she meets the Sixth Prince, who pretends to be lame to protect himself. The two eventually marry, and she helps her husband conceal his abilities, bide his time, and secretly plan his rise. In the end, the Sixth Prince ascends the throne, and Lin Wanying uses her wisdom to secure her place as empress, sharing a deep understanding and lifelong devotion with the emperor.