Yun Hee a strong and tough outspoken girl who was abused by her father, was forced to enter the Palace by the Emperor. She had spent time outside the Palace with the Emperor's brother, of course she didn't know his identity. Haneul once witnessed Yun Hee getting tortured and he took it upon himself to teach Yun Hee to defend herself, Haneul made a silent promise that as long as Yun Hee was out of the Palace he would also stay out. However the summon of the Emperor changed everything, how will Yun Hee survive in the Palace and will Haneul be able to rescue her.