Set in a fantasy world, they were sworn to protect the people from a danger far greater than ever anticipated. After the loss of his dear uncle, Yunho had become the general of men of the realm. A league of highly trained soldiers who risk their lives to save the people of their world from unknown dangers. Jaejoong, a man turned cold from suffering his fate of being a concubine's son, finds that his reason for living is his one and only friend Yunho. However when a young girl turns to men of the realm for help from a new danger, what will be left of their friendship and will it overcome the looming darkness...