Traveling through the world of Harry Potter, Wayne awakened the Chaos Lord system. As long as he created chaos and violated school rules, he would be rewarded.

Thus, Hogwarts ushered in the most lively period.

Dumbledore: "A student life that does not violate school rules is incomplete, but Wayne... please restrain yourself."

McGonagall: "I thought the Weasley twins were invincible, but I didn't expect Wayne to be braver than them!"

Professor Sprout: "Since he came, the badger has become a flat-headed brother."

Snape: "Azkaban! He should be assigned to Azkaban!"

Voldemort: "Don't bother with the Son of Prophecy, I just want to kill Wayne Lawrence! Now, immediately, right away!"

Wayne spread his hands helplessly: "I'm just a little more lively, why do you keep urging me to graduate?"

If Dumbledore had not defeated Grindelwald.

If the war between wizards and Muggles really broke out.

If the finger witch that the faded one failed to meet was reborn in the body of an 11-year-old wizard girl.

My name is Hermione Granger, and I will rebuild the magic circle of this broken world.

(Contains secondary settings, rational discussion)

What era is it now? Are you still using traditional magic wands?

Come try this round wand, which can release three spells at the same time, and its main feature is the surprise effect.

Let’s take a look at this one. This staff is 1.5 meters long and made of iron wood. Dragon breeders all say it’s good.

There is also a cool lightning wand, a two-handed wand with double the power, an easy-to-operate trigger wand, and a finger-sized 7.62...

As the only designated heir of the Ollivander family, Siren feels that he needs to give the backward wizarding world a little shock.

Adrian Wisen, who traveled to the world of Harry Potter, didn't have any big ambitions. As a professor at Hogwarts, his daily routine is to take care of children, farm, and cause trouble for the elderly headmaster. Everyone who knew Adrian Wisen also knew that he was a kind and amiable wizard. Oh, there is one important thing. Never go near those plants he grows!

[Slytherin][Hermione is the only female protagonist][More rigorous: After living in another world for ten years, the protagonist barely remembers a little about Harry Potter][Not a system]

The false devil:

Gather the Saints to fight against the Muggles.

Occupy Britain and attack the school.

The real devil:

Destroy the world and cause great suffering to all living beings.

Elias traveled through time for eleven years and suddenly found out that he had traveled to the world of Harry Potter and was chosen by the bloodline of the devil!

You only need to gather three of the seven deadly sins: pride, wrath, laziness, greed, envy, gluttony, and ecstasy, and the power of the devil in your blood will automatically summon the devil to possess you and destroy the world!

For the peace of the world,

From that day on, Elias knew that his idle life would be gone forever...

Ivy traveled through the world of Hogwarts and became Snape's blood relative. When she was worried, she awakened the diary-making system.

I was a screenwriter in my previous life, and I write a diary in this life.

The melodramatic screenwriter Ivy integrated the original work and tailored a diary for himself.

Hogwarts has changed since then.

Hermione: What? Ivy was almost eaten by a troll because of me?

Luna: What? Ivy was almost beaten to death by bullies because of me?

Fleur: What? Ivy was nearly killed by Barty Crouch because of me?

Gabrielle: ...

Pansy: ...

When Bellatrix also began to scream, someone finally realized that something was wrong.

This guy Ivy, how many girls has he helped?

He came to the magic world with the spark of arcane civilization, vowing to rewrite the fate that was destined to be tragic.

Floating cities rise from the ground, arcane towers connect heaven and earth;

Ancient magic was recast in his hands, and wizarding society was redefined by him.

This is a revolution from low latitudes to high latitudes, and it is the first step for wizards to move towards the sea of ​​stars!

——Voldemort will eventually be destroyed, the savior will no longer walk alone, and he is the one who truly changes the world.

PS: If you have any comments or harsh points, please raise them in the comments section and I will definitely fix them. If you have any creative ideas, you can also raise them and welcome corrections. Thank you all for your kindness.

[Crossing over + becoming a cat + pseudo-antithesis + single CP Hermione + warm daily life]

Original title: "The Secret Black Cat of Hogwarts". The protagonist is not a saint, and the IQ of all the characters is basically online.

The Oriental Black Cat brought mysterious power into Hogwarts. There are so many ghosts in the school, I really want to eat one, the Dementors taste very good, Voldemort is the main meal, there is no escape!

Centaur: The end of the bear, the destroyer of herbs, the nemesis of the eight-eyed giant spider, the ominous darkness...The Mars tonight blinded my eyes.

Draco: He is a true aristocrat! What an elegance!

Simo: shepherd of lost lambs, ferryman of the sea of ​​soul, life mentor, pioneer of art.

Macon: I'm a regular little black cat.

Voldemort: Great! I am beginning to understand everything!

Harry Potter:

[Harry Potter Fanfiction + Magic + Wizards + Bloodline]

Centuries ago, the magical prince Merlin and King Arthur left their heritage and legacy, which included the most important dragon bloodline.

London, 1968.

9-year-old Magnus was lost on the street, but was unexpectedly chosen...

Dumbledore personally invited him to Hogwarts.

Become classmates of James Potter, Sirius and Snape.

What kind of sparks will they create?

When Voldemort strikes, what will Magnus do?

…

ps: If you like HP fan fiction, don’t miss it. It is updated steadily, so stay tuned.

In the year 1340 of the Shire Reckoning, one year before the departure of the Lonely Mountain expedition, the Grey Wizard had yet to visit the Shire, the Dwarf King was still forging weapons in the Blue Mountains, and the dragon still slept deep within the mountain…

In that very year, a young wizard unexpectedly crossed into Middle-earth, carrying the Hogwarts Sign-in System.

Overnight, Hogwarts Castle rose from the ground, standing tall and majestic on the lands of Middle-earth; flying broomsticks streaked across the skies, becoming a unique sight in this world.

In the wild lands, the legend of a black-robed wizard began to spread silently.

He was a friend of the Elves, a bane to the Orcs, a nightmare to the Trolls, and the lifelong nemesis of the Dark Lord Sauron.

Years later, when the Dark Lord was defeated, the Elves sailed West, and the Age of Men began—Duir, who had signed in at all corners of Middle-earth, looked toward the fabled lands in the West.

[Location: Aman. Would you like to sign in?]