Lin Jingyao, a noblewoman from the northern frontier, devotes all her intelligence and talent to helping her fiancé, Chen Jingchong, earn military honors. Yet all the credit is stolen by his childhood sweetheart, Liu Mingyue. After her father passes away, Lin Jingyao begs Chen Jingchong to accompany her back to the capital to pay her respects, but he only concerns himself with Liu Mingyue's minor injury. Liu Mingyue's younger brother, Liu Chaoyu, even humiliates her in public. Heartbroken, Lin Jingyao leaves a letter and returns to the capital, taking command of the Lin family army. Before long, the truth comes to light, and filled with remorse, Chen Jingchong rushes to the capital to win her back. But Lin Jingyao has already been bestowed the title of Princess Anping and agreed to an imperial marriage with the heir of the Marquis of Jing'an, a man who recognizes and appreciates her abilities. No matter how desperately the general begs, her heart has turned to ashes, and she will never turn back.