Black Sword Knight: Traitor's Revenge
30 Episode
Karen, the youngest and most meritorious chief royal knight, is framed by the king after quelling border rebellions. His family is executed and his wife seized. Faking his death, he exiles himself to the northern border, lurking in secrecy to seek revenge. He falls in love with Princess Eleanor without knowing each other’s identities, forming a forbidden romance amid opposing fates. Gathering elite troops, he marches on the royal city. To protect her father, Eleanor sacrifices herself. Grief-stricken, Karen spares the king per her last wish, redresses his family’s injustice and eliminates corrupt nobles. He triumphs in vengeance but loses his only love, departing alone into the snow.