Jimin and his best friend Jaeha are the elite fighters in their village. Swordsmanship has been part of their life since they were children, and now that they've grown up, they want to be soldiers. Their dream will be shattered once Jimin mistakes the Mad King for his friend because of their incredible resemblance. The consequence of their unfortunate encounter will lead Jimin to be forced to work in the palace, doing anything requested from him to escape from execution. But being near the Mad King will open his eyes to a world he has never seen before. Jaeha will break the rules trying to save his friend, but stepping inside the palace will bring untold tales, uncovered secrets and bloodbath.