Roger traveled to the world of Harry Potter.

The game started on hellish difficulty; he became the apprentice of an old, powerful, and extremely temperamental dark wizard. Just as he was cautiously serving this unpredictable mentor, he unexpectedly discovered that the bio-computer he had developed in his previous life had also transmigrated with him!

From then on, Roger's magical training began with the three Unforgivable Curses! "Analysis of the Imperius Curse complete." "Begin observing Professor Quirrell."

Years later, when the Daily Prophet was preparing to write a legendary feature on Mr. Roger Lewis, prominent figures in the wizarding world spoke out:

Professor McGonagall (with a serious expression of amazement): "Without a doubt, Mr. Lewis is an unprecedentedly outstanding graduate in the history of Hogwarts." Dumbledore (his wisdom gleaming behind his half-moon spectacles): "I must admit that no one understood the nature of magic better than Roger. Not even the four founders of Hogwarts." Voldemort (in a complex tone): "It is well known that I made indelible contributions to Roger's magical research..."

Rita Skeeter (writing furiously with her quill pen, her eyes gleaming with gossip): "Mr. Riddle, was it the summer before Mr. Lewis enrolled?"

Voldemort (lost in memories): "Sigh...that summer, they invited me to participate in the experiment, though the method was crude...If they had said it was to develop an elixir of immortality, I could have provided tremendous assistance! I wouldn't have needed to go through the trouble of finding the Philosopher's Stone...I still deeply regret missing this opportunity to return sooner!"

"Knowledge is our best friend, nourishing the growth of wisdom; curiosity is our best mentor, illuminating the horizons of exploration!" "Classmates! As long as we have this potion in my hand, Voldemort has nothing to fear. Times have changed, Voldemort!" Rhodes, the leader of Ravenclaw, delivered a passionate speech, crimson potion in hand. Albus Dumbledore looked at Snape in confusion: "Is this the soldier you brought with you? Will the potion in his hand blow up the school?" Snape said expressionlessly: "Probably not." ...In 20xx, Albus Dumbledore searched Rhodes' dormitory, stunned by the bottles of potion. "This is what you said you wouldn't do!" Albus Dumbledore looked at Snape angrily.