Ming Yue, a modern woman, finds herself in the body of the Demon Clan's eldest princess just as a great war between the Dragons and Demons is about to begin. To unlock a powerful cultivation technique, she must consummate her marriage. The looming Dragon-Demon war creates constant danger, with the Dragons repeatedly launching sneak attacks. Ming Yue knows she must unlock her powers quickly. However, the second princess of the Demon Clan has allied with the Dragons and is secretly working with Ming Yue's husband, Xie Ren. They repeatedly obstruct Ming Yue from consummating her marriage, with the goal of stealing her position as the eldest princess.