[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...

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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!

"Professor Dumbledore, have you ever seen Hogwarts at four in the morning?" Russell said calmly. "From midnight to six o'clock, get six hours of sleep." "From six to eight o'clock, sweat it out in the Forbidden Forest, including but not limited to wrestling with trolls, practicing riding on unicorns, dodging centaurs' arrows, and so on." "From eight to six, be ready for a full day of study." "From six to ten, study late into the night in the library." "From ten to twelve, practice dueling skills in the Room of Requirement." This is the simple yet fulfilling day of Russell Fishthorne, the King of the Curriculum at Hogwarts.

The protagonist, now Tom, has transmigrated again, this time to the world of Hogwarts. He's adopted by Luna and becomes part of her family. Tom, who thought he could only attend classes after his owner enrolled, receives an acceptance letter from Hogwarts on Luna's tenth birthday! Thus, a resilient, mischievous cat with some strange abilities enters Hogwarts as a student. No one knows what changes his arrival will bring to the wizarding world. (Updated at 12 PM as usual)

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.

"Knowledge is our best friend, nourishing the growth of wisdom; curiosity is our best mentor, illuminating the horizons of exploration!" "Classmates! As long as we have this potion in my hand, Voldemort has nothing to fear. Times have changed, Voldemort!" Rhodes, the leader of Ravenclaw, delivered a passionate speech, crimson potion in hand. Albus Dumbledore looked at Snape in confusion: "Is this the soldier you brought with you? Will the potion in his hand blow up the school?" Snape said expressionlessly: "Probably not." ...In 20xx, Albus Dumbledore searched Rhodes' dormitory, stunned by the bottles of potion. "This is what you said you wouldn't do!" Albus Dumbledore looked at Snape angrily.

Who is Zieyer Reed? Dumbledore: He's the man with the most respect and the most disdain for knowledge I've ever met, but I believe he's a good, honest child. McGonagall: A very talented student. I'd be even more pleased if he were a Gryffindor. Flitwick: Those above you, don't try to poach me! Voldemort: 'How does it feel to cut yourself into pieces?' Impolite brat! Zieyer, the "Threadman" and pre-Crow Sorcerer, accidentally opened a long-sealed book in the basement at the age of eleven. After finding countless transparent Crow Cards, he was transported to a new world, along with his house! Seeing people poking around with small wooden sticks, Zieyer slowly raised his man-sized, spiky durian stick and the cards he had rewoven with new colors. Mutual lasers are so boring...

Transmigrating into Harry Potter, he gains a system that allows him to grow stronger through learning. While young wizards are still struggling with the Levitation Charm, Rock has already mastered the entire Standard Spellbook. Hermione: "His notes are more complete than Mrs. Pince's!" The Weasley twins: "Great Rock! We call you the strongest!" Snape: "Potter! If your potions were even a tenth as good as his..." [Flicker] is maxed out to the Law level, a single [Radiant] Holy Light will crush any dissent. [Levitation] is maxed out to the Myth level, a wave of the hand [Universal Pull] will hold the stars in his palm. When Voldemort brandishes the Elder Wand, announcing his 'Return of the Dead', Rock looks at the densely packed, dazzlingly bright max-level skill panel and silently pulls out the wand he's swung countless times. "Tom, have you ever heard of a spell that falls from the sky... Expelliarmus?"...

Fourteen years have passed since Matthew traveled to the world of Hogwarts. During his summer vacation, he unexpectedly acquired a metal disc that allows him to travel to another world. This world has a completely different system of magic. The wizards here are not hidden, and even the wizarding organization rules the land. Matthew travels back and forth between these two worlds, merging the two magical systems. He will control his own destiny and even become a god! Matthew will become the driving force of history, bringing tremendous innovation to both worlds! ... (Not systematic, not saintly.)

【Funny + System + Time Travel】

Traveling through the world of Harry Potter, Howl Weasley awakened the "氪金" system. As long as he had Galleons, he could continue to become stronger.

Others rely on hard work to study, but Hall relies on Galleon.

Others rely on their understanding to learn, but Hall relies on Galleon.

Others rely on talent to learn, but Hall relies on Galleon!

As long as you are willing to pay, you can destroy Malfoy, Black, and Lestrange.

As long as the money is paid, even Dumbledore can kill him.

Since then, the reputation of a "money-making madman" has quietly risen in Hogwarts.

Mysterious man: "I heard you are very powerful in magic, kill someone for me."

Hall: "One hundred Galleons."

Mysterious Man: "Here... help me kill Voldemort."

Hall: "Who?"

Mysterious man: "Are you scared?"

Hall: "You have misunderstood. That is the last bloodline of Slytherin, the great leader of the Death Eaters, the legendary Dark Lord, and the undead with seven clones!"

"This money is not enough..."

Many people spend their entire lives trying to find their true talents, but Seamus Finnigan's talent is undeniable. Just imagine, 30 years from now, who could stand up to me, the Demolition Man? Dumbledore? Grindelwald? Voldemort? Even Merlin would have to retreat. ...Ahem, keep a low profile. Keep a low profile.