"Give me the stone, Potter!" the voice of Quirrell demanded, holding his wand to the back of the boy he was threatening. "Once the Dark Lord has it he will reclaim the power that he lost, coming back more powerful than before!" he zealously proclaimed.

Harry watched as the mirror version of him in the Mirror of Erised brought his index finger to his lips, shushing him as his other hand placed the red Philosopher's Stone in his pocket. He then winked mischievously to him before turning back into a regular reflection.

"Well, boy?! Hand me the stone!"

Suddenly a whooshing noise sounded in the room and a hand emerged from a swirling green fluidic portal holding a gun with mystical runes etched into it. It fired the gun and hit Quirinus Quirrell in the head, causing him to both simultaneously pass out and the spirit of Voldemort to detach from the back of his head, screaming into the night as it fled. "I think it worked!" a voice cheered as a young man no older than fifteen stepped out of the portal. He was wearing muggle clothing, that being denim jeans and a t-shirt that read "Dress Shirt" for some odd reason. In his right hand was the gun with the runic symbols on it, in his left was a sleek gun-looking device with a trapped ball of green electricity on the top. "Hello, Harry! My name is Midoriya Izuku, that's my last name first and then my first name, so just call me whatever."

Harry stood gaping like a fish as he saw someone easily take out a semi-competent adult that was housing the spirit of Voldemort. Granted, he did have the element of surprise but it was still impressive. "Um, hi? What are you doing here? And is that like a sci-fi portal like from the muggle television?"

Izuku nodded his head as he stowed his gadgets into his pockets, clapping his hands together when he was finally empty-handed. "Congratulations, I'm surprised you got it! I'd award you house points if I could, but sadly I need to cut the visit short: Give me the Philosopher's Stone, Harry," he calmly demanded as he leveled his Energy Gauntlet at the eleven year old, the repulsor humming to life. It was currently powered to only stun a target, however, so it could not kill.

Not that the Boy-Who-Lived needed to know that.

"Why do you want it?" Harry asked fearlessly, like a true Gryffindor. He was honestly getting tired of being told what to do.

"My soul needs to be fixed so I can stay with my beloved. I'll return it after it bears fruit," Midoriya answered swiftly and simply. He then revealed an idea, one that was underhanded yet could also be seen as kind: "You saw your parents in the Mirror of Erised, right?" He saw Harry nod, confused on how he knew. "I'll make you a deal, I'll let you meet them, hell, even live with them if you hand over that stone," the green-haired inventor promised.

Harry paused, his eyes in disbelief. "You can't bring back the dead," he argued, not wanting to believe the other kid.

"True, but this isn't the only world out here, there are others."

"Other worlds? Like string theory?"

"You know that? You're a smart eleven year old, Harry," Izuku praised, impressed that the Boy-Who-Lived knew that.

The Potter heir simply shrugged as he said, "I may not be as smart as Hermione but I did study a bit in a lot of subjects, even if it was surface-level. But back on topic, you're saying my parents are alive on some other Earth in another world?"

"That's exactly what I'm saying. Give me the stone and I'll let you meet them," Midoriya reiterated as he held out a hand to shake. Harry reached out and hesitated before realizing that he really didn't have much to lose.

If he really thought about it, even if he was tricked and died, really only two, maybe three, people would mourn him for days. The Dursleys wouldn't give a shite and Snape would probably throw a party in celebration of his death, the bastard.

So Harry Potter shook Midoriya Izuku's hand, sealing the deal as he then passed the Philosopher's Stone over to him. "Yes! Thank you, you will not regret this," Midoriya promised once more as he took out the sleek gun from before, dialing in something as he shoot another portal. "Step inside, it's safe, I assure you," he said as he pulled a flask full of Pepsi out from his back pocket and downed it, feeling thirsty. "It's—BURP!—I-I already set up the play-date, sorry, meeting with your parents beforehand, they're—BURP!—they're waiting for you, Harry," he belched out disgustingly, recorking the flask for use later, putting it where he'd place it beforehand.

Harry looked at the green fluidc portal with some trepidation before stepping inside, finding himself standing outside a dark oak wood double door. It was dark outside with the full moon high overhead, providing some light to the ground below. The portal closed behind him, leaving him stranded. He decided to knock on the door, where was then promptly opened up by—

His parents, in the flesh. His father was standing there, hope on his face that soon transitioned into pure joy and relief. His mother as well, covering her mouth as she began to silently cry. He was scooped up into a hug by the adult, him whispering that he missed him dearly. His mum soon joined as well, and Harry began to cry in earnest.

Nearby Midoriya watched on with a smile, feeling good about himself.

"You're not my parents…" Harry began, still in the throes of the hug. The four of them were in the living room of the Potter Manor, sitting down on the couches. James and Lily Potter were sitting with "their" son, Harry, sandwiching him, while Izuku was sitting alone in an love seat.

"His" parents nodded, "And you're not our Harry," they said.

"You're both from alternate realities, one where Harry was the only survivor of Voldemort's attack on that fateful night, and you two from a reality where only Harry died as a newborn from You-Know-Who," Midoriya helpfully summarized. "The world we are currently in, Harry, is one where Voldemort has won and taken over everything, killing and enslaving practically everyone he couldn't convert to his side as Death Eaters."

"How do you know so much?" Harry asked curiously.

"Lots of research and reading," Izuku answered, not revealing the fact that in his world they were storybook characters, as that was too much of a mindfuck. "Without you, and with Neville Longbottom—"

"My classmate? What does he have to do with this?" the youngest Potter interrupted.

"Okay, quick history lesson. You, Harry, were a part of a prophecy, Dumbledore's to be exact. It basically said that one of you, either you or Neville, will have the power to vanquish the Dark Lord when you came of age. In this universe Voldemort decided to not only torture Heir Longbottom's parents, but to also kill him as an infant. He did the same to the you in this reality, your parents being helpless to stop him."

"Would you mind not bringing up the worst night of my life? Please?" Lily begged, looking ready to cry as she hugged "her" son even tighter.

"Please don't make my mum cry, Midoriya," Harry requested, hugging back "his" mum even harder. James hugged the two of them, glaring at Izuku with a warning in his eyes.

"Sorry. Anyways, with the prophecy in shambles he was free to do as he liked, killing Dumbledore in a duel and taking over the Ministry soon after. Storytime is over, now onto what I'm offering." He paused for a second, wanting it to sink in. "Your son, Harry, has given me the Philosopher's Stone—"

"Harry, you did what?!"/"It exists?!" Both Lily and James respectively asked at the same time, looking to their son for an answer.

He shifted uncomfortable under the increased scrutiny, "He said I could meet you guys, live with you. It's all I've ever wanted, how could I say no?"

"Oh, Harry…" James and Lily said at the same time, hugging him even harder, kissing his forehead.

"Like I was saying, after making a deal with your son I acquired the Philosopher's Stone, something that I need for personal reasons," he sidestepped. "Anyways, the deal was that Harry got to meet you and/or live with you, hope you don't mind."

"Don't mind? Midoriya, you have reunited our family! Mere words can't express how happy you've made us, all of us," James said through a watery smile, kissing his wife's cheek and then his son's. "But we'll need to move countries if we want to continue living in this world.

"Seeing as how I'm feeling generous, I'll give you this one for free," Midoriya began, pulling out his portal gun and firing a portal in the room. "How about all of you live in Harry's universe and take care of him there? Take guardianship away from his Aunt Petunia and Uncle Vernon and let Harry keep going to Hogwarts with his friends," he explained before seeing the angry and borderline shocked look on her face.

"Excuse me? Did you say my sister and her husband have been looking after my sweet baby boy for the past ten years?"

Midoriya nodded, seeing what she was getting at.

"Harry, you're not in trouble, but have they been treating you right? Feeding you well?" she asked as she took a better look on her son's body, seeing that it was rail-thin and malnourished.

"Not really, Mum, they're kinda prats, excuse my language," Harry apologized before getting another hug from his mother.

"I'm so, so, so sorry, Harry. I'm sure your original mother never wanted you to end up there," she promised him.

"Midoriya, excuse me, but can we talk? Alone?" James requested, leading the green-haired inventor over to an empty guest room. He shut the door behind him and then asked, "Is this other world safe for me, my wife, and Harry?"

"Kind of? Voldemort still exists but only as a wraith," Midoriya revealed.

"Damnit! Is there anything you can do about it?" James pleaded, pulling at his hair in frustration.

"Maybe? I'd have to get a piece of Voldemort's soul and that won't be too tricky for when year two rolls around but…yeah, I can help you out. Actually, I have a better idea: I'll just get rid of the Voldemort in this dimension, scan his body, and then produce a tracker for him and track him using Interdimensional Goggles in Harry's universe."

"You've lost me, kid…"

Izuku rolled his eyes as he explained it much simpler, "I'm going to track him and get rid of him, got it?" James nodded. "Good. Now let's get your family to safety."

"Harry, you're okay!" Hermione exclaimed as soon as she got over the shock of Harry and company entering the Great Hall through a green fluidic portal. It interrupted everyone from eating breakfast, the professors up in the stands above watching wearily, their hands on their wands. Harry was swept up into a hug, making him blush from the close feminine contact (she smelled like books, in a good way).

"Excuse me, are you by chance—"

"Yes, Dumbledore, it's us! It's good to see you alive and well!" James greeted the old headmaster, shaking his hand firmly.

"How on Earth are you two alive? I saw the bodies myself, you know," Dumbledore remarked, still quite confused on how this was even possible.

"It's all thanks to this young man, come here, Midoriya!" James waved him over and Izuku met the aging wizard himself. "This is Izuku Midoriya, at least that's the way you'd say it here. He's from Japan and he's our savior," the man praised, patting the greenhead on the back. In the background away from them Lily Potter was conversing with Hermione and Ron, two of Harry's best friends.

"Izuku, is it? I must thank you for bringing back two of my dearest friends," the headmaster thanked, bowing slightly. Out of his peripheral vision he saw a cloak of black make their way over to him. "Severus, glad for you to join us."

Snape nodded shortly before getting in front of the woman he loved, "Lily."

"Snape," Lily said back curtly before going back to talking with Hermione and Ron.

"How are you back? I read the report and even went to your funeral, how are you alive?"

"They're not from this universe," Izuku helpfully supplied. "They're from a different world and—"

"I wasn't asking you, you twerp!" Snape vehemently shot back, hate in his voice. "'Different worlds?' Please, let the adults answer instead of your inane ramblings that you like to do," the professor shot back, reading through the young man's mind quickly and getting a character profile from him.

Midoriya leveled his Energy Gauntlet at the man in slight annoyance, "Listen here you greasy, old man. I don't like it when my mind is read. Don't ever do that again, got that?" he ordered, telling his AI JARVIS to block out any future attempts of Legilimency by shifting the lenses of his sunglasses.

"I'll read your mind as many times as I want, boy. You can't stop me," Snape defied him, trying to read Midoriya's mind once again but failing due to JARVIS's help. "No one can build a mind shield so quickly, how did you do it?!"

"Severus! Stop this at once or I'll be sending you back to your room to think things over with a leveled head," Dumbledore chastised him like a child. "Izuku here is a guest of honor for bringing back that which we had once thought we lost, so treat him nicely or else," he warned icily before redirecting his attention to Izuku, his gaze softening. "Now young man, what was this about other universes and worlds and the like?"

"The James and Lily Potter you see are from another Earth, one where only Harry died on that fateful October night instead of them. I've merely transported them here, where Harry's parents died and he lived so they could live together."

"Oh," he blinked, trying to wrap his head around that. "Is that not breaking a fundamental law of the universe or something?" Dumbledore asked, worried over the state of things.

"Nothing should break, don't worry, sir," he calmed the older gentleman down as Midoriya took out his portal gun, choosing the universe to help him find Voldemort. "Oh, and James?" he began before firing the portal.

"Yes, Izuku?"

"You might want to free your friend Sirius from Azkaban, he's been wrongfully convicted of killing you and selling you out," the green-haired inventor helpfully bomb-dropped as he left through the portal, on a mission.

"Wait, what?!"

Two Days Later

"Fuck fuck fuck!" Midoriya shouted as he was being shot at, wearing his Mark XLVII for protection. The spells kept on coming from Voldemort's newest host as Izuku hid behind some rubble, trying to keep his breathing up. "Just give it up, Snake Face! You can't win this!"

"No, it is you who can't win this, pesky muggle!" Voldemort gleefully shouted. He flew up close to him and shouted a spell, "AVADA KEDAVRA!" The green spell arced on over to Midoriya, it striking the center of his suit. Thankfully the spell was stopped, leaving not a scratch behind. "How did you block that?!"

"With science, bitch!" he answered as he flew into Voldemort's newest body at top speed, throwing them through multiple walls. When he was done bulldozing the soul of Voldemort escaped its dead host and tried to scream away into the night, but Midoriya was ready this time as he took out a thermos and sucked him in. "Thank you, Fenton Thermos," he said as he spinned it around in his hand cooly before putting it on his belt loop that was integrated in his Iron Man armor.

He portaled over to Dumbledore's office and saw the man sitting behind his desk, doing paperwork. Izuku placed the thermos down onto the table, it smoking from its recent use. Dumbledore looked up from his work and saw an unknown entity wearing a full suit of highly advanced armor. He reached for his wand when Midoriya shedded off the armor like it was a skin, revealing that it was just him. "Ah, Izuku, I was wondering when I'll be seeing you again. What is it that you brought me, my boy?"

"Inside of that thermos is Voldemort himself. I set it so that the Fenton Thermos, that's its name by the way, will never open again unless I am around. Please keep the Dark Lord in the dankest, muskiest cabinet possible, please, out of reach and knowledge of his followers and children. It will take extreme force to break it open, so don't be worried about dropping it," Midoriya instructed, Dumbledore's face becoming more and more disbelieving.

"My boy, if what you say is true then you have done the wizarding world—no, all the world a service!" Dumbledore declared.

"Oh and by the way, watch this," Izuku said as he clicked a few buttons into the Fenton Thermos and a glass paneling revealed itself, showing a rudimentary face on the inside that was snake-like. "Hey, Voldy."

"YOU! What have you done to me?!" Voldemort demanded.

"I've trapped you in a thermos for the rest of time. Have fun until all the horcruxes are destroyed," Izuku teased before pressing another button and turning off the display. "Neat, huh?"

"I'll most certainly say."

They were finally out of the Wizengamot after clearing Sirius's name and getting him out of Azkaban. James and Lily Potter went to their room in the abandoned Potter Manor when they discovered it was fully furnished and clean, as if they had already been there. Inside their room they found seven books, each one having their son's name on it. It came with a letter that read:

Dear Mr. and Mrs. Potter,

These books are a telling of your son's life if I never involved myself. It would be prudent to read these to know of the next seven years' future. FYI, get rid of the horcruxes ASAP, as the longer they exist the longer Voldemort does.

Yours Sincerely

Izuku Midoriya