In front of others, they are a perfect match, admired by everyone; behind the scenes, the two of them each have their own sharp swords, testing each other, scheming and pulling.
This fake marriage, which started out of interests, was originally a chess game of mutual use. Unexpectedly, as they get along day and night, their guard will collapse inch by inch.
It was originally a show of taking advantage of each other and getting what they needed, but in the day and night they were tested and feelings arose. Who fell for whom first?
Concept: A woman is not a bird in a cage, she can also hold a sword and gallop on the battlefield.