During the Chongde period, there was an undercurrent in the Yin Dynasty. Ye Huaijin, the legitimate daughter of General Zhenbei, had a scar from a wolf tooth arrow on her left shoulder, so she suffered the tragedy of exterminating her family on New Year's Eve. She was framed by her stepmother and lost her virginity. She stayed dormant in Ciyun Nunnery for three years, and used her photographic memory to decipher the mystery of her birth mother's childbirth. She also got a glimpse of the ironclad evidence of the Queen Mother's collusion with the enemy from the gold foil of the scriptures. Xiao Jingheng, the nine-door admiral, hides a shocking secret behind his stern mask - an old injury on his right leg involves the jade seal tattoo of the previous dynasty, and his blood feud with Ashina Falcon, the Blue Wolf King, is like a tarsal gangrene. When the improved repeating crossbow collided with the mechanism and thaumaturgy, the Black Iron Order and half a tiger talisman were intertwined in the fire, and the dormant emperor's heir and the orphan girl were forced to work together to break the situation. Corruption in water transport involves the Eight Banners moths, a surprise attack on a snowy night intercepts the Canglang cavalry, and amidst the sonorous sounds of the red-decorated generals on Suzaku Street, the Xuanwumen mutiny that has been dormant for twenty years suddenly breaks out. On the day when the jade seal of the Chuan Dynasty appears, amidst the smoke of gunfire camp defections, the hands in charge of military deductions will finally take up the pen to rewrite the fate of the dynasty.