Modern best friends Jiang Wan and Lin Shuang travel through time to ancient times, becoming the primary wife and secondary consort of the same scumbag heir. After recognizing each other, they go from mortal enemies to allies, fighting for favor and infighting on the surface while jointly short-selling the scumbag's assets, opening a beauty SPA, and building a business empire. They fight powerful officials, win over the prince, and ultimately one becomes a princess while the other becomes a martial arts hall master, making a carefree counterattack in ancient times.