Having transmigrated into the last bloodline of the Grindelwald family, he initially wanted to live a low-key life, but was forced to bind himself to the "Underworld God System".

From then on, the style of Hogwarts completely went astray.

"Petrify everyone? That's too lame. Come and witness the power of our Zaun petrification!"

"Want to learn the Patronus Charm? First, pay protection money to the system. Avada Kedavra can turn a melon into a rainbow color for you."

Dumbledore looked at the savior, who had been turned into a "henchman," and fell into deep thought: "This kid...maybe he can form the most cowardly villain alliance in history with Tom?"

Until one day, I was cornered by the Dark Lord, and the system suddenly prompted me—"Hey buddy, there's only one guy on the other side, call for reinforcements to take him down!"

A product of forbidden magic, heir to the Black and White Lords. A powerful body forged from three bloodlines, a brand new soul transcending time. The magical world is in turmoil, as two generations of Dark Lords clash on the same stage, wondering who will reign supreme.

Dumbledore said, "I am your father."

Grindelwald said, "Bullshit, he's obviously closer to me."

Voldemort said, "You are the boss, I accept your position and I won't fight you anymore."

Everything is in Hogwarts: The Forbidden Son of the Black and White Demon King.

[Single female protagonist Hermione + mainly based on the movie plot, later plot changes + system]

Kevin traveled to the world of Harry Potter and grew up in an orphanage without ever coming into contact with magic. It was not until he was 11 years old that he finally received the admission letter to Hogwarts.

Reborn, he just wants to enjoy this magical journey, but as time goes by, he can't help but get caught up in it...

- - - - - - - - - - - - - -

Snape: Kevin? Humph! Just a cocky brat with a bit of talent.

Dumbledore: Kevin is such a good boy who would go to great lengths to help his friends.

Voldemort: Kevin, this unethical and despicable villain! He has attacked me with a crowbar every time I die!

Many years later, Rita Skeeter, who had become the editor-in-chief of the Daily Prophet, asked: "When you decided to study at Hogwarts, did you foresee that you would be successful at Hogwarts?"

Mr. Andy Hall, then Minister of Magic, President of the International Confederation of Wizards, Chief Wizard of the Wizengamot, and holder of the Order of Merlin, First Class, replied helplessly: "?"

"At the time I didn't know a single spell, and I didn't even know I was a wizard."

Rita Skeeter: "So how did you learn magic?"

Andy: "You guys didn't [beep]?"

[The setting is quite different from the original work, so those who study the text suggest clicking the cross immediately]

[I just imagine a free and easy life in the magic world, without too much hatred, conspiracy and intrigue (?)]

God of Time Travel: "I'll give you a chance to travel back to 1991."

Jack: “Cool~~~”

God of Crossing: "Give you extraordinary power."

Jack: "Handsome! Handsome! Handsome!"

The God of Time Travel: "How cool!"

Jack: "Then I should be able to be the best and do whatever I want, right?"

God of Transmigration: "Ahem..."

Jack: "Hogwarts acceptance letter? Wizarding world? Magic?"

A smile appeared on his face subconsciously.

"That's even better! Now I can can starfish!"

God of Transmigration: “???????”

Jack: "Wuhu~~~

With the glory of mankind, we will create a starry paradise!

Voldemort, times have changed!

Eat my neutrons and kill me!"

[As a Hufflepuff, it makes sense that I like canning starfish! 】

[How could I, who am obsessed with building a Star Ocean Community, be the Dark Lord? ]

[The history of wizards can only be described with one simple and crude word: failure

Now, I will define success myself! 】

[The era of Muggles has ended, the future of the universe belongs to wizards, this is the dawn of the era of magic! ]

[All great works require sacrifice to be created. Other beings may not understand, but they must obey! ]

[The introduction is pure nonsense. How can there be such an exaggerated plot? Don’t you think so? (Funny)]

[The female lead is tentatively Hermione. If the protagonist becomes a mechanical synthetic human and Kunkun is gone, ah... um... well...]

Mike looked at the white marble tomb in front of him and stroked the elder wand in his hand. After a while, Mike raised his head expressionlessly and said, "Let's begin!" A group of wizards stood neatly behind Mike. They were all wearing white robes. They all looked excited when they heard Mike's order. He began to release phantom and disappeared into twisted figures. Mike was left standing alone in front of Dumbledore's grave, stroking the elder wand in his hand. "You know, how can a mudblood like me succeed without doing some evil things? All for the greater good."

"The new book "The Lonely Dragon of Hogwarts" has been released! Support is welcome!!!"