Synopsis: Captain! Where Is the Battlefield?

Captain Lee Yoon-ah was a true soldier at heart, devoid of any interest in romance. But when she is killed by a shell while on a mission overseas, she finds herself waking up in the body of Rosalie, a tragic character from her friend's romance novel. With a determined spirit, she sets out to change Rosalie's life forever, using all the skills she learned on the battlefield to overcome the challenges before her. But as she wins over the hearts of those around her, she may discover that love can be just as powerful a weapon as any other. Will she triumph in this new battlefield of the heart, or will love prove too formidable for even a skilled soldier to conquer?