Memories of the Sword "will tell about the unrest caused by three soldiers of the Goryeo Dynasty. Deok Ki (Lee Byung Hun) is treason to result in death Poong Chun (Bae Soo Bin). After that, Deok Ki tried to persuade Seol Rang (Jeon do Yeon) to join him. However, Rang Seol refused and chose to go with the sword of Poong Chun and their infant daughter.
18 years later, Rang Seol who is the female soldier is now blind. Rang Seol has trained disciple named Seol Hee (Kim Go Eun) to become swordsmen and can avenge him. Meanwhile, after 18 years of Deok Ki has now become the most powerful man in the country. Soon there will be bloodshed.