Three years ago, she was his unfavored princess. Her love was fake and her surveillance was real. A piece of paper makes peace, and the two owe nothing to each other. Three years later, she was the victorious General Zhenbei, and he was the new emperor whose foundation was not stable. A contractual marriage in which each takes what he needs, binds the two most familiar strangers again. He was on the dragon's throne and she was running the army with an iron fist. Suspicions and temptations are commonplace, and the light and shadow of swords are commonplace. It wasn't until the dust-laden truth was revealed that they discovered that their hearts had already moved because of the false love, and that their separation in the past was actually a two-way sacrifice under the same conspiracy. When the border war broke out again and the court was about to be stormy, he chose to use imperial power to clear the way for her ideals. This time, can they truly see each other's hearts on the road of blood and fire? Mountains and rivers serve as a guide, and this situation can be revealed.