Shen Nian, the adopted daughter of a noble marquis's household, clashes with Lin Wanwan, the biological daughter who has returned home. The household forcibly feeds Shen Nian a Forget-Worry Gu. When she awakens, she has let go of her obsessions and saves the Princess Royal from a sudden medical emergency with her exceptional medical skills. The Princess Royal takes her in as her adopted daughter, completely turning her life around. Meanwhile, the marquis's household falls into ruin one disaster after another because of Lin Wanwan's malicious schemes and the corruption of Shen Nian's father and brothers. In the end, the entire family is sentenced to exile. Breaking free from the shackles of her past, Shen Nian makes a living through her medical expertise and finally builds a peaceful life of her own.