My Days Making Games and Entertainment at Hogwarts

[Professor Protagonist + Lots of Original Worldbuilding, but Keeping Everyone as In-Character as Possible + Games + Entertainment]

After transmigrating to England, it took him ten years to realize he was in the Harry Potter world.

He thought enrolling ten years late would leave him at the bottom of the heap among his peers. Instead, the system whose progress bar had been stuck for ten years suddenly sprang to life.

All he had to do was collect fluctuations in wizards' emotions to grow stronger and redeem rewards. Lorne immediately persuaded Dumbledore to appoint him director of the General Affairs Office at Hogwarts.

Welcome events, Find Your Second House quizzes, Chamber of Secrets escape rooms, a Hundred Champions Tournament... Wouldn't the young wizards' emotional energy come pouring in?

Lorne had planned to settle down as an ordinary Hogwarts staff member. But when he unlocked the system shop, he suddenly spotted a product from a future era-a magical smartphone!

Voldemort: "What else is there to say? I concede this round, bro."

And so the great Lorne Myers organized all sorts of activities at Hogwarts, becoming its most popular teacher in school surveys. Meanwhile, he spent his holidays scouting employees, developing games and apps such as CooCoo Messenger, and bringing magical smartphones to the world.

With emotional energy pouring in, Lorne was no longer satisfied with the online market. He gradually began putting supporting facilities in place: Wanda Plazas, Disney theme parks, Hollywood... He was going to turn the Wizarding World into an entertainment mecca!

Dobby: "He's the one who told Dobby that a House-elf can be more than just free-a House-elf can freestyle, too!"

Centaur: "Boss Lorne's star-charting method is a treasure that our people will pass down for generations."

Giant: "Dunno. Boss Lorne said I was strong, so I came to build houses."