Xiao Ruotang was sent out for foster care by the Xiao family when he was born, and he has been dependent on his aunt and uncle since he was a child. However, just as she was about to graduate from medical school, a sudden car accident left her aunt in a coma. However, at this time, the Xiao family offered to take Xiao Ruotang and his comatose aunt back to the Xiao family on the condition that they marry Shen Chengyuan, who was disabled in the war, instead of his sister Xiao Yunrou. At the same time, Xiao Ruotang entered Renji Hospital and became an intern. During the internship, Xiao Ruotang and Shen Chengyuan's younger brother Shen Zhinian got to know each other, but they couldn't stay together. The eldest brother Xiao Yunkai, who secretly colluded with the Japanese, placed a woman who looked exactly like his uncle's former lover Sang Yuzhu next to his uncle Lu Xiaoyong. However, Lu Xiaoyong accidentally discovered Sang Yuzhu's spy identity - Matsumoto Tamako during a warehouse shipment. Lu Xiaoyong told his second brother Xiao Yunqi, and while Xiao Yunqi influenced Yuzi, he sympathized with her life experience and developed feelings for her secretly. Xiao Yunkai killed his uncle and placed Xiao Yunqi under house arrest. At the wedding of Xiao Ruotang and Xiao Chengyuan, the second wife Jenny raised her pistol and pointed it at Commander Shen to save her son, but accidentally shot her own daughter Xiao Yunrou. Shen Zhinian takes care of Xiao Yunrou, but cannot restrain his attachment to Xiao Ruotang. Xiao Yunrou grew from love to hatred, but she and Xiao Chengyuan cherished each other. In the end, Yuzi rescued Xiao Yunqi and was hunted down by the organization. Xiao Ruotang arranged for Yuzi to be transferred and perform the task on Yuzi's behalf. In the end, Shen Zhinian and Xiao Ruotang died embracing each other in a field hospital surrounded by the Japanese.
