Xie Shanshan, who grew up in Jiangnan, learned just before setting out that she is actually the true eldest miss of the Duke's mansion who was left outside. She entered the capital with old evidence to claim her kin, but due to taking a wrong turn, she met Pei Ju, a refined yet frail top provincial graduate. One is bright and resolute, while the other is gentle and restrained; they guard each other and achieve one another along the way. As the fog surrounding her birth secret is peeled back layer by layer, she grows from an orphaned girl into a noble miss bold in love and contention, joining hands with Pei Ju toward a brilliant life.