The reader is a Castor class, who is also a blacksmith. He is immortal and has a sort of clairvoyance that he calls his "Foresight". He doesn't know what will happen, but he knows where he needs to be. With this, he has forged the greatest weapons from Hercules' blade to once fixing the legendary sword Excalibur. Now he finds himself a servant, and now the future needs his blacksmithing skills once more