Wen Yu, in order to save her younger brother Wen Qingzhou who is suffering from a critical illness, seeks help from her husband Sheng Yan, but has her savings frozen by him and her life-saving injection invalidated. In turn, Sheng Yan spends six million to purchase a river-view apartment for his white moonlight Su Man's cat, and secretly cancels Qingzhou's free clinical trial quota. Little did they know that seven years ago Qingzhou had donated blood to save Sheng Yan's younger sister Sheng Xia. Qingzhou regrettably passes away, and after the truth is exposed the two divorce. A year later Sheng Xia contracts the same critical illness, and the only compatible match is Wen Yu. Sheng Yan kneels in repentance begging for reconciliation, Wen Yu chooses to donate bone marrow, but sets strict conditions, and also establishes an assistance project, preventing others from repeating the tragedy of losing loved ones at the payment window.