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.

Travel through the world of Harry Potter and obtain the [Positive Energy Explosion Attribute System].

As long as you do positive things, the relevant people may drop attributes.

"I picked up 1000 Occlumency experience points, and my Occlumency skill level reached max. I got the achievement: Spell Mastery!"

"I picked up 500 points of Potions experience, and my Potions skill level was upgraded to level 5. I got the achievement: Potions Master!"

"I picked up 1000 points of physical experience, and my physical fitness increased to level 7. I got the achievement: Tear a dragon apart with my bare hands!"

...

Snape: "Are you an expert in potions? You should be the one to take the potions class from now on!"

Dumbledore: "You can master all spells at once, and you are so positive! You are the hope of the wizarding world!"

Voldemort: "We are all wizards. What do you mean by tearing the earth apart with your bare hands? Also, how come you are more proficient in dark magic than I am?"

Looking at the various black magic spells at the maximum level on his panel, Lynch was speechless.

Do positive things, why is the attribute explosion rate of black magic so high?

He looked at the admiring eyes of the people in the magic world:

"Although I'm very proficient in the dark arts, that doesn't prevent me from being the most positive wizard in the world. No one should object, right?"

I just caught a fish that was three palms long and was planning to show it off.

A guy dressed in strange clothes appeared in front of me.

"Robert Evans, you are suspected of illegally breeding magical creatures and abusing Muggle items. Please come with me!"

"Sir, you must be mistaken. I'm just here to fish."

He said it sincerely, but the 'Sawtooth Shark' chainsaw he had recently caught started up automatically!

Buzz!!!

"You liar! You claim you don't know magic, and you say you're here to fish. How can you catch this?"

————

Robert was transported to the world of Harry Potter by a dump truck and gained the ability to catch all kinds of fish in Terraria.

It’s not even just the fish!

The only drawback is that there is an 'orphan'...

Just when he buried the strange man alive and was about to rely on fishing to eat and wait for death, a tiger-striped cat that looked like it was wearing glasses appeared.

And holding a...letter of employment?

So what is Care of Magical Creatures? Doesn't that automatically refresh?

Wait a minute, what do you mean by a large number of unknown magical creatures appearing?

Giant bees and centaurs at war in the Forbidden Forest?

A giant, long monster appeared in Beauxbatons, France?

The Hogwarts dungeons are guarded by a skeleton?

What the hell is going on?!

[HP][Terraria][No Female Lead]

As the grandson of Gellert Grindelwald, Claude was treated as the third generation of the Dark Lord from the moment he began attending Durmstrang. Later, forced to defend himself, he caused a disturbance and was expelled. After transferring to Hogwarts, he enjoyed a pleasant life, but later discovered that the wizarding world was not as simple as he had imagined: traveling across millennia, applying magical rules, possessing artifacts, and even discovering the existence of gods. All of this was due to a wish granted by a god.

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.

[Daily flow, easy, very talented in magic, from the same class as the Weasley brothers, single female protagonist (original), may be a little worse in the early stage, but will improve in the later stage, so please watch it later]

The newly appointed director, the god who traveled through time, carefully created a car accident. Our hero, after a round of roulette, arrived in the magical world.

Here he met the principal who liked wool socks

The Professor Who Turned into a Cat

A giant bat who loves making potions

Twins who like to play pranks.

Favoring black friends from my own college

Tsundere aristocratic sister

A key keeper who loves Fantastic Beasts

etc. A series of good friends and professors

Learn magic here and live a peaceful life

But some vengeance still needs to be avenged.

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*.

After traveling through the Harry Potter world for seventeen years, Whitefall, who could only use dark magic, was expelled from Hogwarts and became a Death Eater. He was later imprisoned in Azkaban for helping Voldemort.

With no other options left, he took out his wand and was about to commit suicide.

As he was about to die, he heard a golden light explode in his head.

[Ding, your Infinite Forbidden Spell System has been bound.]

No, I was already in Azkaban, and Goldfinger only came?

When he woke up again, he had returned to the scene seven years ago.

At that time, he had not yet entered Hogwarts and was surviving in the cracks of an orphanage.

With the help of the system, Bai Yun uses power far beyond black magic to reach the pinnacle of magic.

If he were to live his life over again, he would make the entire magical world submit to him!

"Auror? What does your arrest of dark wizards have to do with me, the Forbidden Spells Master?"

"Death Eaters? Do you think a mere Voldemort is worthy of my submission?"

"Defense Against the Dark Arts? Sorry, I was instantly killed by a forbidden spell!"

In this life, Bai Yun officially opens a new era of the magical world with his memory and golden finger!

Harry: It seems my classmates are more dangerous than Voldemort?

Dumbledore: Our house has opened Azkaban?

Voldemort: You are using my words!

It's the new school year. Hermione Granger, who returned to school after summer vacation, welcomed the Muggle Studies class she had been looking forward to. The enlightened Professor Lewynter showed movies in class, but these movies... seemed to be a little wrong.

Azkaban Redemption

Sirius Black: You know some dogs are not meant to be caged, freedom shines in every strand of their fur.

Infernal Affairs

Wormtail: You undercover guys are really interesting, always meeting in the cemetery.

Snape: I'm not like you, I'm honest.

Wormtail: Give me a chance.

Snape: How can I give you a chance?

Wormtail: I had no choice before, now I want to be a good person.

Snape: Okay, tell Mad-Eye and see if he tells you to be a good person.

Wormtail: That means my death.

Snape: Excuse me, I'm from the Order of the Phoenix.

Wormtail: Who would believe that?

Memento

Bertha Jorkins: Someone has been messing with my memory. At first I just forgot the afternoon, then I started to lose track of dates and what I had for breakfast…

I wanted to visit my aunt in Albania before I lost all memory of her, and Mr. Crouch was very considerate in granting me this leave.

Crouch?

I seem to remember something, a great secret.

Danger is approaching.

Now,

who I am?

Where am I?

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.