Four years ago, she was his carefully trained secret guard. Four years later, she was a general with great achievements in battle. She went through purgatory and helped him reach the pinnacle of power, just for his original promise. But little did he know that when the world was peaceful and she returned in triumph, a piece of edict sent her into the abyss. She died in battle with no trace of her body. He slaughtered all the border guards, but still could not find her body. When they meet again many years later, they find out that her death in that war was just her intention, but their identities are different. Where should their relationship go?