Neko_himiya

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Author's Note:

This story is written with the help of an AI (Aria), who generates the chapters based on the user's ideas and direction. While the plot is original, the writing style and execution come from an AI assistant. Read at your own discretion!


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Synopsis:

Reincarnating into the Harry Potter universe should have been a dream come true. But for [FMC's Name], it was a playground for chaos.

Gifted with a magic ability that lets her steal anything without anyone realizing it’s gone, she turned the wizarding world upside down—stealing the Philosopher’s Stone, dismantling Voldemort’s plans, and leaving even Dumbledore utterly baffled.

By the time she left Hogwarts, history had been rewritten beyond recognition.

But her journey doesn’t end there.

With nothing left to challenge her, she sets her sights on a new magical world—one just as full of legends, prophecies, and untold power.

And once again, no one will ever suspect a thing.


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The Phantom Thief of Fate

Chapter 1: Welcome to Hogwarts (Time to Break Everything)

Reincarnation was already weird enough. Ending up in the Harry Potter universe? Even weirder. But the strangest part?

I had a magic ability that let me take anything I wanted… and no one would even notice it was gone.

It wasn't invisibility or some complex trick—it was like reality itself accepted that whatever I took was never there to begin with.

I tested it a few times before coming to Hogwarts. A book from Flourish and Blotts? Gone. Some Galleons from a rich wizard's purse? Taken. Even a whole stack of Chocolate Frogs vanished into my pocket, and the store owner just smiled at me like nothing happened.

Now, here I was, standing in the Great Hall, waiting for my Sorting. The famous Sorting Hat was placed on my head, and—

Just like that. No drama, no internal debate. Easy. I stepped down and took a seat at the Ravenclaw table.

Everything was going exactly as it should.

Because by the end of my first year… the Philosopher's Stone would be mine. And no one—not Dumbledore, not Harry, not even Voldemort—would ever know it was missing.

As the feast began, I listened to the excited chatter around me. Everyone was talking about Hogwarts, magic, and the legendary Harry Potter sitting at the Gryffindor table. Meanwhile, I was more interested in figuring out how I'd break the plot.

The Philosopher's Stone was hidden behind several layers of magical protection. The problem? It was designed to stop students and normal thieves.

I didn't need to solve Snape's potion puzzle or fight a giant chessboard. I could just… take the Stone. Right out of the Mirror of Erised. And no one would even suspect it was gone.

The question was: When should I do it?

I decided to wait. If I took it too soon, Dumbledore might notice something was wrong. No, I'd wait until the perfect moment—just before Quirrell and Voldemort tried to steal it. That way, the protections would fail, and no one would even question why.

By the time the first years were led to their dorms, I already had my plan.

Step one: Act like a normal student.

Step two: Take the Stone when the time is right.

Step three: Watch the chaos unfold.

I grinned to myself as I stepped into the Ravenclaw common room.

This year was going to be very interesting.