The Love Battle Between Princess and Prince

It tells the story of a princess in a kingdom. This princess was originally innocent and lovely, but because other countries attacked the empire, in order to save the empire, the princess sacrificed her emotions in exchange for strength to save the empire. From then on, she was ruthless, but she met a prince, the prince of the Crystal Kingdom. After many, many stories, they became a couple and the princess's emotions slowly recovered. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.