As a time traveler, Agares decided to stay away from Hogwarts after graduating, fearing he'd be caught up in the dangerous situation. However, his thoughts changed after he struck a deal with Arceus, the Pokémon God. Chosen by Arceus as a Pokémon ambassador, Agares decided to start promoting Pokémon among the more receptive wizarding community. Five years after graduation, Agares returned to the magic school, this time as a professor.

Traveling to the world of Harry Potter, Ivan Vesemir became the heir of a pure-blood family.

Adhering to the central idea of "If you can survive, you will survive", Ivan handed over the Horcrux he got to Dumbledore, detoured when he met Harry Potter on the road, lowered his grades in the exam to make the professor ignore him, take a step back and find a way out;

Arm yourself with alchemy, study black magic and learn about your enemies.

And then, he was inexplicably targeted by the boss...

"What? Why can I achieve what I am today? Ah... It's embarrassing to say, they won't let me go on, so I can only find a way to kill them all."

Hogwarts Honorary Headmaster, Eagle of Helheim, Incarnate Man, Midas Toucher, Enemy of Goblins, First Class Merlin Medal Winner, Honeydukes Candy Shop Owner——Ivan Vesemir Said.

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?

[Cyberpunk][Harry Potter][Dual World Shuttle]

Harry Potter: Old man, the work is done, give me the money

Dumbledore: Harry, 60 points from Gryffindor for your bravery.

Harry Potter: Damn it, I almost died there, and you just give me some extra points and that’s it?

Dumbledore: ...

Malfoy: Pott, you shouldn't be hanging out with those mudbloods, the disgrace to purebloods.

Harry Potter: Go away, company dog, oh no, puppy

Priest: Harry, I have a big order that I think you can take on.

Harry Potter: Dad, don’t you always ask me to handle your big orders internally?╮(￣⊿￣)╭

V: Harry, you, want to go to Arasaka Tower with me and cause a scene?

Harry: You hit the nail on the head. Let the year 2023 bring back the past, V. Let's burn Arasaka Tower to ashes!

Mann: Harry, how are you? (He leans forward) Um, that soothing agent you have...

Harry: It's the soul... Never mind, I'll give you a 30% discount for Rebecca's sake.

Rebecca: Harry, explain why you stood me up last time, honey~ (pulling out the iron gall)

Harry: I, um, I said I traveled through time, do you believe it... Don't load the gun!

Left at his aunt's doorstep, baby Harry Potter arrived in Night City after a mishap. Raised by Father Sebastian, he became a "special" mercenary for the Valentino Gang. But after a mission, he traveled back to his original world, and a line of small words appeared on his prosthetic eye: Shuttle Energy, Accumulating...

Draco: Red hair, second-hand robes, second-hand textbooks, I know who you are, another Weasley. Penelope: Your sister? Jordan: Your sister? McGonagall: Your sister? Claire: Oo? Your sister! Ginny blushed: Hello, sister. Percy: Merlin, I want to write a letter to mom... no... to dad! Fred said to George: Is this our sister that dad lost? George's eyes lit up: There will be 6 Weasleys in this school! Sorting Hat: Another Weasley? Gryffindor! Claire: Occasionally look up at the sky, the sun rises and the sky turns red. Fred: A Weasley marries a Weasley and doesn't even have to change her last name.

(Otome + gender change + group favorite + parent-generation + multiple male protagonists + multiple endings)

What? Others who traveled through time are the Dark Lord's daughter, Harry Potter's sister, or at least a divine beast with its own system, right? Good heavens, but when I come to this place, I become the hated Peter Pettigrew?

The good news is she's still a girl, but the bad news is she has to keep her vest covered at all times when living in the men's dorm. Why is Sirius looking at me with increasingly ambiguous eyes? What? Lupin, you want to talk to me alone? Snape, aren't you madly in love with Lily Evans? And... Newt? Who are you? I don't remember your name in the book.

Watch how Alayya turns the tide and transforms from a disliked little mouse into a popular heroine!

(Note: This article involves the gender reassignment of Peter Pettigrew. Those who are incompetent should leave immediately. You are also welcome to read my other articles.)

Cardcaptor Sakura fan fiction, without separating Wolf Sakura, with Tomoyo as the heroine.

Question: What if I woke up one day and turned into a child?

Answer: Of course, it is to become a sunny and cheerful boy!

Xia Yu covered his eyes with one hand and smiled evilly, "I am the pinnacle of humanity, proud of the world. As long as I am Xia Yu, the sky will be there! I, Xia Yu! A magician hidden in the mortal world. In this magical world shrouded by the veil of daily life, I am one of the very few chosen ones who can glimpse the truth. I hold the sun and the moon in my hands and pluck the stars. There is no one like me in the world. Hahahahahaha!!!"

I've been transported to Hawkins, the town from Stranger Things, and become Will's brother, Jonathan Byers. This America is too dangerous; horror stories unfold everywhere, and the sweet air is thick with evil. The neighboring town is Silent Hill, with a street called Oak Street, home to the Shining Hotel. I've heard there's a cabin in the woods beyond town. Legend has it that deep in the forest lies a fairytale town inhabited by vampires and young wolves, while Jason and Voldemort lurk outside. From time to time, demons from hell invade the world, aliens are always causing trouble on Independence Day, and Thanos, the head of the Space Office, is willing to snap his fingers—if you're unlucky, you'll be vaporized to dust. Luckily, I have a Dungeon Fighter Online (DNF) game system with me, allowing me to become a professional exorcist and form an exorcist alliance. I've gathered Constantine, Johnny Depp, Van Helsing, Nick Wilde, and the Ancient One. Everyone, don't fight over this monster; let me kill it! I'm super strong… If you, fellow readers, find "This Stranger Things is a Bit Cold" enjoyable, please don't forget to recommend it to your friends on QQ groups and Weibo!

Edward traveled through time again and came to a mysterious world.

From then on, there was a stranger here who could travel between the two worlds regularly.

So, what will he bring to both worlds?

ps1: This book is a traditional fan work and will not completely abandon the original characters to tell the story. The heroine is Miss Justice, and she may join the Queen later on.

ps2: The path of the protagonist of this book is semi-original. He takes the path of [Apprentice] in the early stage and starts to change in the middle stage.

ps3: The protagonist is basically invincible in the same level, but he can't kill high-sequence enemies.

Returning from the mysterious world, witch Harry only wants a peaceful life and to experience Hogwarts, this fairytale playground, firsthand. However, a certain self-proclaimed Dark Lord and some so-called "important figures" seem determined to prevent her from having her way. So, it's time to let the wizarding world know what true "calamity" really is. (Those who haven't read Harry Potter or Lord of Mysteries won't be affected.)