He was at Hogwarts, and had just become a Half-Blood Prince.

[Parent-generation; multiple female protagonists; no system]

…

In 1976, 16-year-old Severus Snape welcomed a new life.

That year, Voldemort had not yet split his soul into seven pieces.

That year, Nagini was still hiding in the forests of Albania.

That year, Pandora was still doing wonderful experiments at Hogwarts.

That year, Ms. Rosmerta was in her prime and very graceful.

That year, Snape decided to experience this wonderful world.

Ciel traveled through the magic world and became a distant relative of Professor Sprout. He was also tied to the planting system - planting plants can get rewards.

"Plant ten Devil's Snares and get 10 fragments of Binding Curse Enlightenment. Your Binding Curse has been upgraded to the legendary level."

"Plant ten Biting Cabbages and get 10 fragments of Sharp Spell Enlightenment. Your Sharp Spell's killing power has been greatly improved."

So Hogwarts has a diligent and thoughtful little wizard who is dedicated to planting trees.

Three-headed dog? Philosopher's Stone? Nothing to do with me.

Basilisk? The heir of Slytherin? Stay out of it.

Triwizard Tournament? Cedric died? That's a pity, plant a tree to commemorate him.

“..."

"What? You said the Death Eaters dug up my vegetable patch and trampled my saplings?"

...

[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:

[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...

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.

Dementors are evil magical creatures that have no facial features and can only distinguish living people by smell and the emotions floating in the air.

Wherever they go, all happiness will disappear, leaving only the deepest fear in people's hearts.

Legend has it that under the hood of the Dementor there is a face that can devour souls...

"That's the theory."

Cohen Norton did not deny this.

"But this doesn't affect my desire to be a good person. No, it's weird."

As he said that, Cohen licked the lollipop in his hand and turned a blind eye to the child next to him who was crying because the candy Cohen's brother gave him suddenly disappeared.

[Ding! Goodwill value +1, sin value +1]

[Note: Giving candy first and then snatching it is immoral and you will be condemned by your conscience]

(This is a story about a funny person who travels through time to the magical world, becomes a subject of some evil black magic experiment and grows up positively and healthily - just listen to it seriously)

- The following is an incomplete introduction -

"What is this, Tom Riddle's diary? There's a soul in it, take a sip."

"What is this, Slytherin's locket? Pry it open and take a sip like an oyster."

"What is this, Hufflepuff's cup? Add some milk tea and take a sip."

...

"What is this, Harry Potter? You smell good, bro, sip--"

"Cohen, don't come over here!"

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!

This book is also known as "Come to Hogwarts to Learn to Slay Gods" and "Chainsword + Boltgun: Times Have Changed, Wizard Master!"

In the dark 41st millennium, Bourne faced the Primarch Angron, who had ascended to the devil, in the Warp and was hit head-on by the Spinebreaker.

But his soul was neither polluted and assimilated by the Warp, nor did he return to the Golden Throne.

Bourne came to the world of Harry Potter.

ps: The content of this book is also friendly to readers who don't know Warhammer and Harry Potter. You can rest assured that the protagonist will not be tragic.

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.