Traveling to England in the 1980s, Jon Hart was ready to study and work hard.

Not wanting a letter from Hogwarts, disrupting all his plans.

What is the cruelest thing for a student who is ready to devote himself to scientific research and has carefully planned for more than ten years?

That is to tell him that this world is not only unscientific, but magical!

[Invincible + Rational + Second Setting + Nanny + The original plot has been changed, please watch with caution]

Many years later, Harry Potter, who was hailed as the greatest white wizard of this century after Dumbledore, was interviewed by a reporter.

"Mr. Potter, is the person you respect most Headmaster Dumbledore?"

Harry shook his head.

"Is that Professor Snape?"

Harry still shook his head and said softly, "From beginning to end, there is only one person I respect, and that is my teacher - Al Yaxley."

[Single female lead, Hibiscus, a genius protagonist. The story will try to follow Rowling's original character traits as closely as possible, though some elements may be added by the author.]

Having been reborn into the world of Harry Potter, Raven only wants to live a happy and joyful life with his family and friends.

So Hogwarts gained a little badger who always acted on his whims.

Harry: Where's Raven? I want to see if he'd be willing to help.

Ron: He seems to have gone fishing in the Black Lake.

Harry: But I just checked the Black Lake, and it's not there!

Ron: Maybe he went to have hot pot with Hagrid? He always says that having a fish hot pot after swimming is very comforting.

......

Dumbledore: Raven, you should continue to create a few more spells so that you have a very good chance of getting a Merlin First Class before your fifth year.

Raven: But Professor, I don't want to continue. I've become more interested in alchemy and fishing lately.

Dumbledore: Your interests are very varied.

Raven: Yes, but I feel like fishing will be a long-term hobby of mine. Those damn fish just won't bite. I think I need to learn some new techniques to deal with them.

......

Grindelwald: You possess the immense talent of Raven, you...

Raven: Sorry, Mr. Grindelwald, I'm not really interested in the greater good.

Grindelwald: But war between wizards and Muggles is inevitable.

Raven: Let the people who should be worried about this worry about it. I'll bend over if the sky falls.

Grindelwald: ......

......

Evan has time-traveled once again.

His first time traveling was from Earth to the D&D world, where he went through trials and tribulations and became a sorcerer of the Universal School.

However, a fierce battle ended his second life.

When Evan opened his eyes again, he was surprised to find that he had once again traveled to a magical world that was both familiar and strange.

An owl flapped its wings and flew swiftly, delivering his Hogwarts acceptance letter, but the timeline he arrived in was 1971.

In 1971, a turbulent era, the Demon King was stirring, the Phoenix perched high in the castle, and the towers of Nurmengard remained tightly shut.

And those future heroes—Lupin, Sirius, James, Lily, Snape… at this moment, they are just innocent teenagers, unknowingly walking into the vortex of fate.

This is a glorious era, though not detailed in the original work, it is equally magnificent and filled with brilliant stars.

However, for Evan at this moment, the first thing he needs to solve is how to restore his spellcasting ability in this world without a magic network and with scarce magic power.

Or perhaps, he could go even further, relying on more advanced magical research concepts, gathering a group of intelligent and powerful companions, and launching a magical revolution that would change the entire magical world.

In any case, the times are waiting for Evan's actions.

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

The timeline is set in 1971, in the same year as Sirius Black, Lupin, and Snape. The protagonist has mastered the spell system of D&D, has no system, breaks up the original pairings, is slow-paced, not mindless, and will seriously consider the plot.

Why did I transmigrate into this guy's body?!

Snap snap snap~

The angry boy raised his hands and slapped himself until his head looked like a pig's.

"Excellent work, reward me!"

A voice echoed in his mind, interrupting the pig-headed boy's chaotic thoughts.

You have received a reward of 666 Galleons from the system.

And in that Diagon Alley, a boy grasped his first magic wand...

"Wow! This thing is interesting!"

[You have received a Wizard Duel Gift Pack as a reward from the System Master]

[Bloodline Awakening: The Knight King's Legacy Technique - Excalibur*1]

——————

A casual, appreciative system master

A manual left behind by an adventurer who grilled a phoenix.

An ancient secret, its traces erased by time.

When the stone pillar that sealed history crumbled, demons symbolizing destruction emerged from hell.

In Hogwarts, the Knights of Conquest donned ferocious heavy armor and charged straight forward, their feet treading on blood and fire.

This is a not-so-serious, but still very serious, Harry Potter fanfiction.

Welcome to the world of magic!

"Robin, a model citizen, is transported to a magical world, inheriting the bloodline of the Eastern Phoenix from the start! After enrolling at Hogwarts, with his extraordinary talent and the blessing of the Phoenix bloodline, he gradually rises to the pinnacle of the wizarding world, becoming an existence surpassing even the god of magic, Merlin!"

When a science PhD travels to Hogwarts, he discovers that magic is just another form of energy—as long as there is a theory, it can be quantified, copied, and enhanced!

From analyzing the structure of wands to developing magic circuits and energy arrays, he ushered the wizarding world into the "era of technological magic."

Voldemort was sent to the research institute by him, and Dumbledore asked him to give a public lecture on "Magical Physics".

However, this was just the beginning—when he broke through the dimensional barrier, new worlds began to emerge:

In Middle-earth of The Lord of the Rings, he single-handedly suppressed Sauron;

On the continent of The Witcher, he combines magic and runes through alchemy;

In the Marvel Cinematic Universe, he even got Tony Stark to come and get inspiration from him;

After Harry Potter, he will eventually become the supreme god of magic in all the heavens and the myriad worlds!

Multiverse, academic genius, magic and technology, fast-paced leveling-up, multi-world travel, harem + conquest storyline

[No female protagonist] It’s not that I don’t want to write, it’s that I can’t

It took Samael 11 years of traveling back and forth to realize that he had come to the world of Harry Potter and had become a wandering descendant of the Gaunt family.

What kind of sparks will be produced when Parseltongue meets Anaconda?

What effect will occur when werewolf venom is combined with the blood curse?

What changes will happen when Orochimaru meets the Green Snake with Three Flowers?

Samael Gaunt, a wizard seeking fame and power.

Harry Potter: He was my best friend.

Dumbledore: He is a true Slytherin.

Snape: He might be the third Dark Lord.

Hagrid: We have the same hobbies.

The incomplete fragment of the artifact carried a soul to the magical world we imagine, albeit a little too early. Voldemort was still Tom Riddle, Snape's mother hadn't been born yet, and the original Dark Lord was still striving for the greater good.

The male protagonist has no CP in the main text, but there is ambiguity in the early stage. Support ggad, Sili