Gu Yeqiu, facing family difficulties, disguised herself as a man to join the army for her younger brother Gu Yixun. She was brave and skilled in battle, and was awarded the title of Grand General of the State. She didn't receive warmth when she returned home, but instead suffered jealousy and murder from her mother and younger brother, and she endured it silently. The emperor granted marriage and intended to betroth the princess to her, but Gu Yeqiu refused without success and had no choice but to enter the palace as the eldest daughter. She has a strong personality and is favored by the emperor, and her relationship has gradually become closer. However, the younger brother exposed his true identity after drinking, which angered the emperor and made him want to be executed. Although Gu Yeqiu experienced sweet love, he remained resilient and brave, and was about to face the cruel judgment of fate. He was still the great general of the town on the battlefield