I'm at Hogwarts, What's the Point of the Immortal Cultivation Panel?

After years of being ground down by the corporate grind, a disillusioned office worker finds himself reborn in Britain decades ago. Along with this second chance comes the awakening of an Immortal Cultivation panel. Though the world's spiritual energy is thin and progress is painstakingly slow, he is undaunted—after all, this world appears to have no supernatural powers at all. That certainty crumbles on his eleventh birthday, when a letter delivered by an owl shatters his ordinary life and reveals the hidden wizarding world. Now mastering both Western magic and Eastern immortal arts, he excels in charms, divination, alchemy, Transfiguration, and ancient magic—even pioneering a revolutionary new potion system. "Youthfulness Pills? One dose ensures eternal youth." "Transformation Pills—keep your pet in human form for a full month." "All-purpose household magic puppets, freeing your hands completely." Years later, revered as a Grand Archmage by the magical community, Gerald rides a beam of sword light wreathed in thunder, cornering the dying Dark Lord Voldemort. "I was ruined by that damned prophecy—who would have thought Hogwarts was hiding a mage so far beyond common sense?" When the Daily Prophet asks about being ranked as an even more terrifying taboo than Grindelwald and Voldemort, Gerald replies, "The public often misunderstands me. I'm merely an honest, law-abiding merchant. Calling me dangerous is pure slander." As for his methods—"Potion-making requires experimental materials. Extracting a few souls now and then is perfectly normal, isn't it?" Also known as Lord of Thunder at Hogwarts.