Ruan Yunqiao's fiancé and the Second Regiment Third Battalion Commander in the military. He joined the military six years ago when Ruan Yunqiao was only twelve. He had been writing to her frequently and sending gifts such as clothes, skirts, shoes, and snacks. Ruan Yunqiao is visiting him to assess whether he is still suitable as a husband. The soldiers at the base mention that Battalion Commander Lu always talks about his fiancée. His father is Lu Weiguo.