One Sword to Dazzle the World [Wuxia Crossover]

At thirteen, Ling Xiu, the Grand Princess of Daqing, drove back a rebel army with a single swing of her sword and became famous overnight. The people of the martial world were deeply skeptical, until... she became the greatest under heaven!!! Xiu'er: I've got my brothers to thank for making my way through the martial world. Brother No. 1, some Phoenix: I've sacrificed so much [exhales smoke] Brother No. 2, some Thief Chief: My reputation's been ruined [stares into the distance] Brother No. 3, some Top Scorer: I'm chasing my wife all the way to the crematorium! [roars] Some Divine Marquis: Princess, the Southern Prince has contacted the Sword Immortal of the South Sea. It seems he intends to rebel. Ling Xiu: Huh? Got it. [heads out with sword in hand] Some Divine Marquis: This matter still requires... Princess? Princess! We still need to discuss this carefully... Ling Xiu: What? That's so much trouble! How about I cut him down first, then we talk? Some Divine Marquis: ...Your Majesty, what do you think...? The Emperor: Someone, bring my jade seal so Xiu'er can crack walnuts with it! The Divine Marquis: ... It's truly heaven's blessing that Daqing hasn't fallen yet! Content warnings: This is a goofy, self-indulgent fanfic with headcanons and original interpretations. The timeline serves the plot. The female lead is a walking cheat code, with a level of martial prowess that leaves everyone else in another dimension. Theme: Don't worry about lacking status, worry about lacking virtue.