Xiao Jing, Minister of War, mistakenly hears "practicing dance" as "practicing martial arts" and raises his daughter, Xiao He, into a spirited young woman capable of lifting a hundred jin and skilled with blades and bows. On the day of the imperial selection, Xiao He demonstrates extraordinary strength and is exceptionally appointed as an Imperial Guard. After entering the palace, she repeatedly overcomes difficult situations, rising from guarding the Cold Palace to joining the Imperial Feather Guard, with her sights set on her family's sworn enemies, the Liu family. After being framed and imprisoned by the Liu family, Xiao He secretly investigates the truth and ultimately turns the tables on the corrupt conspirators. She quells rebellions and earns great prestige through her military achievements, eventually being crowned Empress. In the end, she stands shoulder to shoulder with the Emperor, blades in hand, protecting their country and its lands together.