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The Foolish Daughter Is Actually a Sword Immortal

Ning Yao, legitimate daughter of the Ning family, has unparalleled talent in swordsmanship but is born mentally disabled due to heaven's jealousy. After apprenticing to Peach Blossom Sword God Deng Xianzhi, she learns peerless sword techniques. Upon her return, the Ning family faces a takeover crisis from a collateral branch and revenge from the Heavenly Sword Manor. How will Ning Yao turn the tide, lead the Ning family to rise again, and dominate the world with her sword?