Shen Wangying relives a lifetime, participating in the Crown Princess selection alongside her elder sister Shen Wangyue. Crown Prince Song Zhen reveals his identity and chooses Shen Wangyue as his consort, while Wangying decides to follow her own heart and head to her maternal grandfather's home in Jiangnan. Reunited with Lin Shu, an acquaintance from her childhood, she enters into an engagement with the support of her grandfather. Facing Song Zhen's attempts to make her stay, she honestly expresses her own choice and marries Lin Shu, who is willing to move into her family as a matrilocal husband. From the Eastern Palace to Jiangnan, she begins a new life with firmness and sincerity, reaping her own happiness in peaceful companionship.