Substitute

In the plot, the only daughter of a general is forced to accept an imperial decree to marry a prince. However, she unexpectedly falls in love with a substitute prince—a man who has been living in the shadows, filling in for the real prince. This substitute is cunning, with a masterful grasp of political power, and highly skilled in martial arts.
Despite his cold and calculated nature, his heart begins to thaw only for the woman who becomes his weakness. As the power struggle intensifies, the protagonists find themselves as pawns in a much larger game. Although their feelings develop, the deep-seated betrayal between them sparks intense emotional conflict.
Love turns to hate, and they become adversaries, fighting with swords rather than words. Their complex relationship, rooted in deception and entangled with personal ambitions, is full of anguish and emotional depth, symbolized by their dual identities and mirrored lives.
(Source: Drämä Dïäry Facebook)