Qi Wanfeng and Xiao Chenbi are well-known rivals in the world. One is in charge of the new city in the name of his deceased brother, and the other is from a century-old family and controls the grain and salt roads. The first time they formed an alliance, they set up a trap for each other. The second time they met, they drew their swords in the meeting hall, and no one was willing to bow first. Until the Xiao family forced Xiao Chenbi to return to the clan to get married, and King Qi took the opportunity to attack the city, he simply entered the city as a hostage, and then pushed a marriage contract in front of Qi Wanfeng: "Marry me, and the Xiao family will provide food and charcoal for three years." She agreed to this profit marriage for the people of the new city, but she did not expect that the biggest trouble after the marriage was not foreign enemies, but Xiao Chenbi's increasingly obvious protection against shortcomings. He protected her identity, her reputation, and her dignity that refused to show weakness even after running around all night. When she finally admitted her feelings, the grand master produced a blood letter from seven years ago, proving that their families had long been on opposite sides of each other's blood debt.