The male protagonist Duan Fei (played by Han Zhishuo) is a special forces soldier with heroic charm. He is usually careless and ruffian, but he has a strong sense of justice. He often defeats the enemy with one move at critical moments. His various brave deeds have also won him various "bad peach blossoms". He was "betrothed" to Yun Shitong (played by Zhao Yuxi). This "nominal" couple competes with each other and can be called a pair of happy enemies. With first-class skills and first-class alertness, he helps Yun Shitong defeat her opponents in business, secretly protects her, and thwarts various assassinations. The two go through many difficulties side by side, and finally change their prejudices and become a couple.