The Dark Lord's Employment Guide at Hogwarts

Young biologist Li Weide unexpectedly finds himself in the world of Harry Potter, transported to the era of Grindelwald, and astonishingly, his body has reverted to the age of eleven.

"Ding! Binding the Merit System for the host. By doing good deeds, you can accumulate merit points to exchange for rewards! Additionally, if the host ultimately achieves the title of Dark Lord, he can become a deity instantly."

Li Weide: ??

Years later...

Dumbledore: "He is a great man. In this era, not many are willing to sacrifice their own interests to help others."

Grindelwald: "Nonsense! This guy, though young, will stop at nothing to achieve his goals. He is clearly one of us!"

Newt: "That young man looks more ferocious than a raging dragon, but... why is the qilin so close to him?"

Tom: "Who said you could act like the Dark Lord? Sometimes I want to shout that you’re a saint!"

Li Weide: "Saint? With no nose, you’re cursing too dirty!"