A young girl sets out to revenge the betrayal and the death of her mother. She must defeat one of the most powerful men and warriors of the Goryeo Dynasty to fulfill her destiny.
3 warriors from the Goryo Dynasty lead a riot. Due to the betrayal of Deok-Ki (Lee Byung-Hun), Poong-Chun (Bae Soo-Bin) dies. Deok-Ki then tries to persuade Seol-Rang (Jeon Do-Yeon) to join his side, but she refuses. She then flees with Poong-Chun's sword and his infant daughter. 18 years later, the female warrior is now blind and she trains the young woman (Kim Go-Eun) to use the sword for revenge. Meanwhile, Deok-Ki is the most powerful man in the country. Soon blood will be shed.