In 2026, Blue Planet was attacked by monsters from another world. Lin En, who was originally middle-aged, was forced to join the ranks of defending his country. Unfortunately, he was killed in an orc raid. When he woke up, he came to England 20 years ago. Reborn as Andres Mori with a complete set of golden fingers, he had a chance to save Blue Planet. Until many years later, he not only saved mankind but also led mankind to conquer the other world. He was called by humans: Marquis of Paradise Island, founder of Hogwarts, guardian of mankind, conqueror of the other world, and great magician.

(This work is a system-based work. The early stage focuses on building Hogwarts to train wizards. The middle stage allows the trained wizards to integrate into the Muggle world to establish a society where wizards and Muggles coexist. The later stage welcomes the invasion of the alien world and resists and counterattacks. The number of words is determined by the work's performance.)

In the magic world a thousand years ago, he traveled with four teachers for seven years. Ryan found himself back in 1991, back to the orphanage he was familiar with. After three days. He saw a pure white owl flying towards him with a Hogwarts admission letter in its beak. So Ryan knew that he would return to the Hogwarts that was familiar yet unfamiliar to him. "Mr. Ryan Elias." "Dumbledore called you the most outstanding graduate in the history of Hogwarts, the Dark Lord regarded you as his greatest enemy, and the dark wizards called you a wizard destined to be great. For these titles..." "Of course." Ryan answered calmly with the answer that should be given. "I approve of it all." Be it potions, duels, spells, alchemy, the dark arts, or even cooking and pranks. "Of course I will always be the best." Because he...

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!

The story begins. Ian thought he was just a little wizard with a bit of talent and a simple [plug-in]—as long as he worked hard, he could become stronger.

However, as time passed, he began to realize something.

The teachers guiding him in magic were either legendary powerhouses or figures straight out of myths.

*"Standing before you is the noble Apostle of the Maze, the Co-Spokesman of the Old Dead, and the heir personally chosen by the founder of Hogwarts!"*

What? The noseless monster wants to make a move?

He must have never heard of the original spell recorded on my Chocolate Frog’s Famous Wizards Collection Card!

Dumbledore: *"That spell…!"*

Dumbledore’s expression changed as Ian recited *"Call of the Guardian Spirit."*

Silver-white threads surged, intertwining and condensing until a familiar figure appeared, one that a certain professor had spent his entire life drowning in guilt over.

In the wizarding world, magic only erupts when one is about to turn eleven. Rhine was ready to lie down when he just received the Hogwarts admission letter, until...

[Congratulations to the host for joining the Chan Sect, the Honghuang human connection system is officially bound]

Rhine: "This is Harry Potter, system, are you crazy?"

[Main quest: Make friends, participate in the Battle of the Gods and survive]

Rhine: "I repeat, this is Harry Potter. I'm going to take my head to participate in the Conferred God Battle?"

[In front of you is Yuan Hong, the leader of the Seven Monsters of Meishan. He is a natural species, more than eight feet tall, holding a water and fire stick.]

[Make friends with Yuan Hong to gain the talent - Iron Skin and Iron Bones.] Invulnerable to swords and guns, immune to water and fire, and can extend your life by a hundred years. 】

Rhine fell silent as he looked at the half-blood giant Hagrid in front of him.

"Okay, this is the primitive world, right?"

"I just want to ask, are you authentic?"

I thought I was a Kryptonian, but I didn't expect that I was actually a magician!

Kerry, wearing a Superman costume, received an envelope with an "H" badge. From that day on, Hogwarts would never be peaceful again.

Because the noble Kryptonian bloodline comes with 90% magic immunity and 99% physical immunity...

Dear Mr. Kerry, please allow me to crown you king!

On the day he crossed the world of Harry Potter and received the admission notice, Ethan awakened the achievement system. As long as he made the corresponding events, he could get rewards.

With three million gold, he has achieved the achievement of [hegemony and wealth can rival the country].

Get the blood of magical animals and achieve the achievement [I'm not a human].

Use Avadaso's life to kill 100 wizards and achieve the achievement of [Gnawing Big Melon Lover].

......

On the day of graduation, when Ethan was seamlessly appointed Minister of Magic, the reporter of The Prophet's Daily asked:

"Mr. Adrian, as the youngest and best Minister of Magic in history, I heard that you have been famous for Hogwarts in the first year of admission, won the Merlin Order Medal in two years, and directly overturned the professor in three years... I don't know why you have achieved such dazzling results?"

Ethan Adrian spread his hands: "I really want to make progress!"

[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!

From Hogwarts to Strixhaven,

From the castle of Magic High School, step into the hall of Magic University.

Please witness the greatest magic show!

A grand tribute to elemental magic presented to you by Ivy Doom!

PS: The protagonist comes from Hogwarts Legacy, has completed the first three years of the journey, and has killed the dragon Smaug with the Hobbits. The Goblet of Fire is in progress, and the next world is Strixhaven.