When Huns invade the country, young officer Tang Weitu is sent to borrow forces from the State of Qin in order to save the nation. Passing by a temple, he takes the opportunity to drop in on his mother there, and happens to meet Bian Yujing, who is taking refuge there with her younger sister and brother. WeituandYujing fall in love with each other at first sight and get married on the spot.
The prince of Western Qin is not eager to help but his daughter, Caixia, loves Weitu, and so earnestly requests him to send troops. For the purpose of getting the troops to defend his state, Weitu has to agree to the marriage. After the Huns are defeated, the young officer goes home together with his new bride and has to explain the whole story to Yujing, who is well aware of the righteous cause and forgives him. Still,Weitu and Yujing pretend to be at odds and Yujing is killed during their fight. Caixia runs away from him withYufu, Yujing’s sister. Weitu is utterly disheartened. He abandons his post and becomes a monk, begging alms from door to door. Sixteen years later, he meets Yufu again, who proposes marriage to him. Caixiastrongly opposes the marriage, and tells Yufu that Weitu is the murderer of her sister. After explaining his situation, Weitu and Yufu finally get married.