A/n: The idea to do this crossover between Harry Potter and Pretty Cure came about after reading the Harry Potter crossover challenges posted by Phantom00. This may not be one of their challenges mentioned, but thank you anyways for giving me the idea.
I'm mainly going to use the Pretty Cures from Futari wa Pretty Cure Max Heart although I might bring in Cures other seasons, so if you have suggestions please pm me or put it in a review.
I made a few changes to both to make them fit this story better.
Nagisa Misumi (Cure Black) is the Girl-Who-Lived with the lightning bolt scar above her right eye
Nagisa orgininally had green eyes but turned brown when she was somehow sent to Japan1 but regains them in her PreCure form
Lily country of orgin was Japan but was adopted into the Evans family
The younger brother, Davis James Potter, was hailed as the boy-who-lived
Nagisa birth name is Rosemary "Rose" Lily Potter
Nagisa is retains her Max Heart age of 15
Davis is 14
Nagisa has no memory of being Rosemary
Greater Good and manpitalive Dumbledore
Nagisa's English name was entered causing her to be summoned by the Goblet of Fire while dragging Honoka (Cure White) and Hikari (Shiny Luminous) with her when they try to stop her from leaving.
The Cures refuse to bow down to Dumbledore's greater good
Lily Potter is dead
Now let's begin the story.
Cure Black: PreCure and Harry Potter belong to respective creators.
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Dumbledore POV: Hogwarts
The plan is going beautifully, thought Dumbledore with an inward smile as he was about begin a speech. Soon young Davis' name will shoot out from the cup and become the fourth campion and bring back Tom Riddle for me to defeat.
Dumbledore opened his mouth to begin his speech when the Goblet of Fire shoots out the fourth slip of parchment which he reads then yells out loud in shock, "ROSEMARY POTTER!" Following which a magic circle appears to summon the girl everyone thought dead. Dumbledore then repeats the name and a blinding white light flashes.
-PCGOF-
Meanwhile on the other side the world in Tokyo, Japan
Nagisa/Cure Black POV
"Man, this Zakenna is tough," says Nagisa before punching Zaktanna several times before being knocked back into Honoka and Hikari.
The three get back up and were about to attack the monster when Nagisa stops suddenly. The other notice and stop as well.
"Cure Black, is something wrong?" Asks Honoka aka Cure White.
"Do you hear that?" Asks Cure Black somewhat scare.
"Hear what?" responds Hikari aka Shiny Luminous confused.
"It sounds some one is calling a name. Rosemary Potter. Can't you hear it? Look out!" Asks Cure Black before shouting a warning as the monster they're fighting is about to attack. Then Mepple speaks up, "Black! I sense some strange magic heading our way-mepo."
"And it's not from the Dark Zone or the Garden of Light-mipo. It's targeting Black-mipo," continues Mipple just the magic hits Nagisa and starts pulling her away. Honoka and Hikari grab Nagisa to keep her from disappearing only to get caught in the strange magic which undoes the threes transformation. Before the light disappears the Zakenna gets caught in it and disappears as well, leaving the Zaktanna's summoner confused on what just happen.
-PCGOF-
Hogwarts
Nagisa, Honoka, Hikari, Mepple, Mipple, Pollun, and Lullun crash onto the great hall's floor which somehow now allows them to English. They get up look around confused on where they are. Everyone else are staring at them after the light disappears wondering where those come from.
"Where are we-popo?" asks Pollun, "Why am I speaking strangely-popo?"
But before anyone could answer the Zaktanna appeared and started attacking. Nagisa, Honoka, Hikari, and the fairies looked at each other and nodded. The fairies except Lullun transformed into their commune forms which Nagisa, Honoka, and Hikari grab and initate their transformation sequence.
Nagisa raises her right arm while holding Honoka's right hand with her left while Honoka raises her left arm.
"DUAL AURORA WAVE!" They shout as they're engulf by a rainbow light. [a/n: it's the Max Heart sequence with addition of Nagisa eyes turning green.]
"Emissary of light, Cure Black!" Says Nagisa.
"Emissary of light, Cure White!" Says Honoka.
"Together we are Pretty Cure!" They then say.
"Servants of the dark power..." begins Cure White.
"...Return to the darkness where you belong!" Cure Black finished
"LUMINIOUS SHINING STREAM!" Hikari says after waving her over Pollun's commune form and is engulf in a shining yellow fog.
"Shining Life, Shiny Luminous!" Hikari begins.
"The light's heart and the light's will, for sake of uniting all as one!" She finishes as a pink heart expands and disappears.
They start attacking the monster sending it out the door and into the wall. The Pretty Cure follow it and Cure Black and Cure White grab each other hands.
"Black Thunder!" Says Cure Black.
"White Thunder!" Says Cure White. Black and White lightning strikes the two and starts sparking around them.
"Our beautiful souls..." Cure White starts.
"Will crush your evil soul!" Cure Black finishes.
"PRECURE MARBLE SCREW!" The girls reached forward and lightning starts sparking in their hands then pull their arms back then forward. "MAX!" Sending forward a stream of black and white lightning at the monster and destroying it.
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A/n: That was harder than I thought it going to be. It exhausted my brain, but it's a worthy challenge for those who are up for it. Now, where's my chocolate covered takoyaki at?