Chetamja

After losing his family in a violent Jurchen attack, Gwiyeong vows to pursue them relentlessly. His combat abilities draw the notice of King Sejong, who invites him to join Chetamja, a group of top secret agents operating in the north on behalf of the king. Working with his fellow agents, Gwiyeong channels his desire for revenge into a commitment to protect Joseon from hidden threats.