On the day when General Zhenbei's entire family was falsely accused of collaborating with the enemy, ten-year-old Mu Zhao escaped from the capital hiding in a coffin. Ten years later, she tied up her long hair and put on a military uniform, using the alias "Mu Sanlang" to sneak into the Northern Xinjiang Army - the Wu Commander's account and planned to defeat the Beirong grain bureau. When the arrow shot at the enemy chief, the tip of her hair swept across Xiao Chengyu's armor. The "Blood-faced Yama" with eyes above his head only thought of her as a clown at first, until he saw her climbing from the corps commander to the general on the mountain of corpses, until he heard her shouting in front of the formation: "General Xiao, I will defeat this battle with you!" ' When her daughter's body was uncovered and the whole court was scolded, he drew his sword and cut off half of his cloak and tied it around her waist: 'She can block Da Zhao's swords and arrows for twenty years, why can't she be a female general? This prince has hired me with military prowess to protect her in armor! '