[Harry Potter fan fiction + professor writing + education reform + layout + make up for regrets after the main story begins]

[Slowly warming up! There are new education reforms every year]

Sebastian Swann, an outstanding graduate of Slytherin, heir of an ancient alchemy family, and the richest man in the wizarding world. 12 years after graduation, he returned to Hogwarts as a professor...

Snape: "Sebastian, what made our richest man choose to be a little professor at Hogwarts?"

Sebastian: "To make Slytherin great again!"

Snape: "Tell the truth..."

Sebastian: "To make Hogwarts great again! ... Put away the truth serum, Severus, you are such a bore!"

Snape: "Tell the truth!!!"

Sebastian: "It's all true, except... I still want to make wizards great again!!!"

......

ps：

1. The protagonist graduated from Slytherin, is Snape's friend, and is not very friendly to the deer dog

2. The original female protagonist (a tool person) has no sweet love. The male protagonist is focused on his career and has no children for the time being.

3. Focus on Slytherin's shrewdness and ambition, not bloodline

4. Contains two settings

5. The timeline begins in the second year of the Weasley twins, one year before Harry and the other two enter school.

6. Lightning avoidance: This is the White Lord!!! Not the Dark Lord!

[HP Fanfiction + Single or Multiple Female Protagonists + System + Snake Court + Behind the Scenes + Slow Heat]

[ps: Don’t join Ron’s party, I don’t like this character]

My name is Leggett Black.

After crossing over, I obtained a system....

It was also from this day that the world began to emit shrill screams.

Tang: Damn it, who stole my true energy!!!

Yu: "Ahhhhhhhhhhh!!! Oh my god!!!"

Jia Zhang: "Old Jia, please come back and take this thief away!!!"

In short, this is a story about exchanging everything in the Harry Potter world...

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!"

Chen Yu, he has many identities.

He is a gamer and a student at Hogwarts.

He is Tony Stark's savior and is also respected as the Second Supreme by the wizards of Kamar-Taj.

He was the victor of the Fourth Holy Grail War and El-Melloi II's student and greatest patron.

He was given the three Unforgivable Curses at the beginning and almost entered Slytherin.

His biggest dream is to explore the magical mysteries of different worlds.

What I want to do most is to fire an Avada Kedavra light cannon at the enemy.

"Attention, attention! Everyone, look over here, follow my lead. I have an announcement to make!"

"I, Chen Yu, the Sword Master of Avada, come and fight me if you don't agree!"

He traveled to the Harry Potter world with a simplified system. He thought that with the system, he would become the richest man in the world. However, an acceptance letter sent by an owl changed his plan. It turned out that he was not in the city but in the magical world...

I took the letter and looked at the familiar logo on the cover, then looked at the time on the calendar hanging on the wall, and fell into deep thought...

Even though he hated Nanny Wen in his previous life and still hates her now, he doesn't hate others being his nanny!

It’s just that at this point in time...

Well, I can’t rely on the care of the three protagonists anymore, so I can only rely on their parents.

But I didn't expect that I didn't get the thigh, but I became the thickest thigh...

Karen, who thought he had traveled to a parallel world, finally found out that he had come to the world of Harry Potter when he was eleven years old.

With eyes that can see through magic, Karen is destined to become a master of the magic world.

Karen has always felt that the most fascinating part of magic is not those earth-shattering spells, but the subtle flow of magic in daily life.

He would rather spend his time reading various magic books in the library or observing the magic background of this thousand-year-old castle.

The following is a real interview record:

"Professor Evans Kahn, what do you think of the rumors that you are the first generation Dark Lord and the confidant secretly cultivated by Headmaster Dumbledore?"

"That is pure slander!"

Evans stood at the Wizengamot's inauguration ceremony, his face indignant.

"Dark Lord? White Lord? These all sound too scary."

"If there must be a title, I actually prefer the word Beast King."

The next day, newspapers throughout the wizarding world published reports about the third generation Dark Lord changing his nickname.

"Wait, when did I admit that I was the Dark Lord?"

[HP fan fiction + single female protagonist Luna + no system + slow heat + growth flow + Hogwarts Legacy elements + settings have been changed, those who have not been exposed to related novels and games will not be affected. ]

Travel to the world of "Harry Potter".

When Vizette first traveled through time, he obtained the Obscurus. With the help of ancient magic power, he successfully controlled the Obscurus and received an invitation to enroll from Dumbledore.

Before that, he needed a place to stay, and the Ministry of Magic and Dumbledore arranged a place for him - Luna's home.

Vizette's magical journey begins here!

In order to learn more ancient magic and master the dangerous power of the Obscurus, he entered Hogwarts to study and became a member of the Eagle House.

In Ravenclaw, Vizette maintained the habit of loving learning and strived to win over everyone present.

Everyone in Ravenclaw: He is too competitive, and we can't win over him at all!

Quirrell, possessed by Voldemort: Interested in curses? Come to me on Saturday afternoon, I will tell you everything!

Snape: You have a talent for potions. Come to my place on Sunday afternoon and I will let you experience the charm of potions!

Dumbledore: This is the result of my and Grindelwald's research. Use it well and don't let down the knowledge in it!

Voldemort: Your talent has caught my attention! Come with me! Leave Hogwarts!

Lucius: Why did my Dark Mark appear again after meeting you?

Under the guidance of "Wizards' Practical Guide", Vizet mastered various magical knowledge, explored the mysteries of ancient magical power, and knew the secrets of this world.

…

The decisive battle came, and Voldemort found Vizet reading.

Vizet took out his wand first, and a dazzling lightning flashed, and the library returned to silence...

Traveling to the magical world, Aaron became the heir of an ancient magician family and has been the hope of the family since his birth.

Until an owl delivered a letter of admission to Hogwarts, he resolutely packed his baggage and embarked on the road to pursue freedom.

He thought that as long as the final boss, Voldemort, died, he would be able to sit back and relax, but he gradually discovered that the world was not as simple as he thought…