Matthew traveled to "Harry Potter", only to find that the world was facing the invasion of various foreign evil gods:

The "Dimensional Devil" that rules purgatory, the "Eyes of the Abyss" that dominate the spirit world, the "Paradox Devourer" that occupies the void...

There is also the "Blood Lord" who stole his chance to travel through time and whose strength has undergone a qualitative change...

There are suddenly many evil cults in the world. They are the root of the old beliefs and the anchor point for the invasion of foreign gods.

Fortunately, the system has awakened an incredible wisdom!

Yes, you read that right! The system has given itself a cheat code!

And as the host...Matthew can completely skip the comprehension steps and directly obtain the results of comprehension!

What does your understanding mean to my understanding? We just have different divisions of labor.

Many years later, when many evil gods were willing to burn the world to death in order to descend upon Hogwarts:

[You have come into contact with the origin of the laws of space. Due to your extraordinary understanding, you have gained the right to manage the crystal wall of the world.]

[You watched the world that was about to fall. Due to your extraordinary understanding, you mastered the endless world destruction chain.]

You can figure out the system, and leave Hogwarts to me!

Looking at the system prompt, Matthew announced domineeringly:

Evil God, get out of my Hogwarts!

…

Dumbledore: Wait, your what?

At first, Aiden Winchester thought he had simply been transported to another world filled with malevolent spirits. However, an acceptance letter from Hogwarts changed his life as a witch hunter. He never imagined that he, who had always only hunted witches, would be accepted into a wizarding school. Witch hunter? Wizard? These two identities didn't conflict at all. Aiden, twirling his Kurdish demon-slaying blade, stood at the entrance to the Slytherin common room. Since dark wizards all came from Slytherin, why not start there! This book is also known as: *Three Sentences That Made the Headmaster Pay Me Ten Thousand Galleons*, *I Really Didn't Want to Be a Wizard*, and *Exorcising Voldemort Is Also Exorcism*.