A boy longing for revenge with blood-painted hands. He is a cold-blooded psychopath dressed in the glamorous clothes of a prince. In a planned attack on his 7th birthday, Prince Nicolas Gregory lost three important things, his friend Alisa, his innocence, and his memory of his merciless massacre of the culprits with a mysterious ability to conjure a sword. Attempting to fight his emptiness, he tries to live normally as a prince and fulfill his duties regardless of what his heart's cry is. But there are things that one tainted with blood cannot escape. With reminders popping out one after another and the continuous threat to his life, what will he do if his lost memory resurfaces. Will he once again wield the blades of revenge? Will he open his heart to the future? Or will he fall into deeper despair and follow the path of blood?