Zhang Shicheng and Zhu Yuanzhang were originally sworn brothers and resisted the Yuan Dynasty together. Later, Zhu Yuanzhang killed Zhang Shicheng and established the Ming Dynasty. Zhang Zongzhou, a descendant of Zhang Shicheng, fled to the north. Zhang Danfeng is a wise and suave man. He is the son of Zhang Zongzhou and the descendant of Zhang Shicheng. In order to prevent the Han people from being ravaged by foreigners, he secretly sneaked to the Central Plains from Oirat to help the Ming Dynasty resist the Oirat. Zhang Danfeng met a girl named Yun Lei in the Central Plains. She is strong in martial arts, smart and kind-hearted. Zhang Danfeng and Yun Lei admired each other, and when they fell deeply in love, they later found out that they were enemies. Yun Lei's grandfather, Yun Jing, a high-ranking official in the Ming Dynasty, and his father Yun Cheng were persecuted by Zhang Danfeng's father, Zhang Zongzhou, and later died tragically. Yun Lei bears the deep hatred of his ancestors. Zhang Danfeng and Yun Lei started a love-hate relationship, a touching and heartwarming story.