Fifteen hundred years ago, the most powerful mage in the world was defeated and imprisoned by a fearsome demon lord. After centuries of imprisonment, his soul was finally reborn as a boy in the body of a young man from a modest family. Equipped with a unique magic system, the protagonist demonstrates extraordinary abilities from a young age. At the age of nine, he begins intensive training, quickly mastering the arcane arts. At fifteen, he enrolled in a prestigious academy that trained the best mages, warriors, and specialists in the world. However, the city where the academy was located was constantly besieged by demonic attacks. The young mage was then forced to accept missions to track down and eliminate these malevolent creatures while continuing his studies. As his missions take him from underground dungeons to demonic realms, the protagonist begins to uncover the truth about his past. He realizes that the demon lord who defeated him centuries ago is still alive and still poses a threat to the world. Driven by a burning desire for revenge, the young mage will once again have to face this formidable adversary and put an end to his reign of terror. Throughout his journey, he will push his limits, form new alliances and reveal the full extent of his powers.