He threw away all his youth and fought for the world. Gilford Reeves, the most powerful sorcerer of all time, became a legendary hero after a deadly battle with a Devil. The cost was heavy, and he was mortally wounded. However, as Gilford thought that death was the only thing waiting for him, his best friend, a vampire, had a trick up her sleeve; she put him into a long sleep with a special spell to heal his wounds. Then, when he next awoke, a thousand years had passed in the world. Gil, who has regenerated and awakened in the form of a child, is now enjoying his second life, using the power that once made him the most powerful sorcerer in the world. While enjoying reunions, new encounters, and the changes in the world after a thousand years, Gil will restart his life to regain his lost youth!