Modern martial arts star Song Jun accidentally passed away and transmigrated into the body of a 300-jin butcher girl in Dajing, ordered to marry the Prince of Han, Gu Heng. On their wedding day, a sudden change occurred in the imperial court; Song Jun took a butcher's knife into the hall and requested to lead a peace mission. She and the forbearing God of War Gu Heng fell in love after marriage, deeply infiltrating enemy territory together to uncover the corruption conspiracy in the court. After being framed, they went to the desolate fiefdom, pacifying bandit troubles and developing industries. Having gone through court struggles, floods, and border enemy intrusions, the two broke the deadlock, eliminated traitors, and guarded the territory. In the end, Gu Heng ascended the imperial throne, set up no harem, and the couple jointly ruled the world.