After his parents died in the line of duty, Pei Anan grew up under the care of his two older brothers. However, due to the appearance of the fake orphan girl Wen Tian, he was misunderstood, reprimanded, and even kicked out of the house. Frustrated, she took over her parents' unfinished mission and participated in ten years of closed medical research to serve the country. When the brothers saw through Wen Tian's true face and learned that she would never return, they were left with endless collapse and regret for the rest of their lives.
