After being betrayed by her fiancé, Huo Zhenzhou, dancer Li Su impulsively marries his younger brother, Huo Xuanye. Through misunderstandings about being a substitute and the hardships of deliberate harm, the two protect each other and move forward together, breaking free from the emotional shackles of their past. In the end, Li Su confronts her pain, perseveres with her rehabilitation, and pursues her dreams. She and Huo Xuanye turn their marriage into true love and find the happiness of two hearts choosing each other.