Ling Yuan, the concubine's daughter, hides in a deep house, but is obsessed with the ancestral "Martial Classics Summary". When the "hook-mounted" shield that her family was so proud of repeatedly showed flaws during drills, she became keenly aware of its fatal flaw. Relying on her deep understanding of the classics and her unique understanding of the "leverage" method, she quietly transformed the bulky shield into a "hooked crossbow shield" that could be used both offensively and defensively. Faced with the ridicule of "women without martial arts" and the contempt of her brothers, Ling Yuan used "sand table deduction" as the battlefield, "Creation Method" as the standard, and integrated wisdom into cold armor (such as the shock-absorbing layer of a breastplate). From the small martial arts arena within the family to the war-torn border, she used her original "information cavalry" tactics to turn the tide. This is a glorious journey in which a concubine uses her military wisdom and innovation in weapons to break the shackles of prejudice, and finally takes charge of the "Female Weapons Supervisor", letting the world witness that Xuanji's wisdom can also pivot the world's edge.
