Disclaimer: I do not own the anime/manga "Naruto" or the "Harry Potter" book/movie saga, and the only thing I own is this alternate/parallel story that I have written for fun.
Can an Ex-Shinobi Use Magic?
Part 1: Hardheaded
"Speaking"
"Thinking"
"Rasengan!" Attacks / Abilities / Chakra / Jutsu / Ki / Magic / Techniques
Reading / News / Intercoms
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The bustling King's Cross station in London was a hive of activity that September 1st, 1991. However, amidst the sea of gray suits and hurried travelers, one figure stood out with the intensity of a sun in the middle of winter.
Goki, or Kakaroko to the few who knew her Saiyan name (Vegeta, Broly, Raditz, etc.), walked with a cheerful nonchalance that contrasted with the chaos of the station. At 35 years old, the Saiyan woman was a breathtaking sight. Her black hair defied gravity in her race's iconic palm-tree shape, and her coal-dark eyes sparkled with childlike curiosity. But what truly stopped foot traffic was her physique. Standing at 1.70 meters tall, she possessed a figure that seemed sculpted by the gods: massive breasts that strained the fabric of her casual clothes, a waist so impossibly thin it accentuated the explosive curve of her hips, and a prominent rear that drew stares wherever she went.
Businessmen tripped over their own briefcases watching her pass, and some women shot her glares loaded with envy. Goki, in her infinite innocence and naivety, simply smiled, thinking the city humans were being unusually friendly that day.
"Look, Naruto!" she exclaimed, pointing at a conventional train. "These 'iron horses' are really slow compared to the Flying Nimbus, but they have their charm!"
Walking beside her was Naruto, her fourth son. The 11-year-old boy (almost 11) had the same spiky black hair and semi-tanned complexion as his father, Broly. Naruto was no ordinary child, even by the standards of his alien family. He was a reincarnated soul, a warrior who had sacrificed his life against Kaguya in another existence and who now, thanks to a gift from Kami-sama, possessed not only Ki and Chakra, but also this strange new energy: Magic.
Naruto sighed, shifting his backpack on his shoulder.
"Mom, I still think this is a waste of time," he grumbled, though without any real malice. "I could be in the Highlands training with Uncle Vegeta or, better yet, with Kefla. She's going to get stronger than me if I spend the year waving a wooden wand around."
Goki stopped and looked at him tenderly. She thought about her life in remote Scotland, hidden from both the magical and Muggle worlds. She thought of her beloved husband, Broly—that 2.13-meter giant of pure muscle mass and power, who was currently at home taking care of the rest of their enormous brood: Furensō, Gohan, Goten, Romanesco, Bardock Jr., Paragus Jr., Rock, and little Toma. Goki smiled to herself remembering Broly; their relationship was intense and passionate, and nights with him were an adventure that left her exhausted and happy, which was exactly why they had such a large family.
But today was about Naruto.
"Come on, son," Goki said, placing a hand on his shoulder. "We read that Dumbledore guy's letter. You have magic, remember? Just last week you made that roast chicken float right into your mouth without touching it."
Naruto blushed slightly.
"That was an accident. I was hungry and my hands were full. Besides, I can't control that energy, it feels... weird."
"Exactly! That's why you have to go." Goki crouched down a bit to look him in the eye. "If you don't like it, I promise we'll talk to your father and pull you out. But just try it. Do it for me. You know I want you to learn how to control all your power."
Naruto looked into his mother's dark, pleading eyes. In this life, having known the love of a complete family since birth, he had a massive soft spot for her. Goki was the center of his world.
"Alright..." Naruto conceded, defeated. "I'll go to Hogwarts. But on one condition."
"What is it?" Goki asked, tilting her head.
"A goodbye hug. A really good one."
Goki let out a crystalline laugh that echoed down the platform.
"Aww, my baby! Of course!"
Not caring that they were supposed to be looking for the magical barrier between platforms 9 and 10, Goki pulled Naruto into her with her controlled but firm Saiyan strength.
Naruto didn't resist and let himself be pulled in. His face was immediately buried in the deep, soft valley between his mother's enormous breasts. The scent of home, of safety, and her maternal warmth enveloped him completely. To the onlookers in the station, it was a curious scene: a spectacular woman hugging her son with over-the-top effusiveness. For Naruto, it was the ultimate shield against the unknown world he was about to face.
"You'll behave, right?" Goki said, stroking her son's spiky hair while he remained pressed against her generous bust. "And don't destroy the castle if you get mad."
"Mmphh mmph," Naruto replied, his voice completely muffled by his mother's anatomy, nodding slightly against the softness surrounding him.
After a few seconds that felt like an eternity for Naruto's comfort (and for the envy of several male passersby), Goki released him, letting him take a gasp of air.
"Alright, now run through that wall!" she cheered him on, pointing at the brick pillar of Platform 9¾. "Make your father and me proud!"
Naruto straightened his clothes, gave his beautiful mother one last look, and, with a determined smile, got ready to sprint at the barrier.
...
..
.
Or at least, that was the idea.
Naruto, feeling the adrenaline and determined to get this chore over with as quickly as possible, adjusted his backpack, bent his knees, and shot off like a rocket. He didn't use his top speed—that would have caused a sonic boom and probably blown the "wigs" off half the Londoners present—but he still had considerable momentum.
"Here I go!" he shouted mentally.
Without hesitation, he threw his shoulder into the brick column that had the number 9 painted near the top. He closed his eyes, expecting the magical sensation of passing through a portal...
CRAAAACK!
The sound was sharp and deafening, like a giant sledgehammer striking a boulder. The entire station seemed to vibrate for a second. Nearby travelers dropped their suitcases and covered their ears, searching for the source of the crash.
Naruto bounced backward, landing right on his butt, rubbing his forehead with a grimace of annoyance rather than pain.
"Ow!" the Saiyan boy complained. "What kind of magic is this? It's rock hard!"
Goki blinked a couple of times, confused, and ran over to him.
"Naruto! Are you okay?" she asked, though she wasn't really worried about her son's health (she knew a brick wall wouldn't do anything to a Saiyan), but rather about the situation.
When the dust settled, both of them looked at the column. There was no magical portal. Instead, there was a massive spiderweb-shaped crack running from the base up to the middle of the pillar, and a crater in the exact shape of Naruto's shoulder embedded in the pulverized bricks.
"Oops..." Naruto muttered, standing up and dusting off his pants. "I think I hit the wrong column, Mom."
Goki let out a nervous giggle, scratching the back of her neck in her typical carefree pose.
"Heh, heh, heh... Wow, you really are hardheaded, just like your father. Good thing no one is looking at us... much."
In reality, a lot of people were staring at them, their jaws dropping at both the boy's absurd strength and the mother's imposing figure, especially the latter. Goki, ignoring the stares, began to scan the area for a sign. It was then that her sharp ears caught a peculiar voice amidst the hubbub.
"...packed with Muggles, of course..."
Goki turned her head, her black eyes lighting up. A few meters away, a plump, kind-looking woman was surrounded by a group of children, all with unmistakable fiery red hair.
"Oh! Look, Naruto!" Goki said, grabbing her son's hand. "That family seems to know something. Let's go ask them!"
Goki approached the Weasley family with her confident stride, causing her attributes to sway with a hypnotic rhythm that inevitably left the red-haired woman's older sons (the twins and the one named Percy) momentarily speechless, their faces turning as red as their hair upon seeing such a stunning woman approach.
"Excuse me!" Goki greeted with a radiant, innocent smile. "Hi, I'm Goki. My son Naruto has to go to that magic school... Hoggy-something... but he just tried to run through that wall over there and almost knocked it down. Could you tell us how to get in without demolishing the station?"
Mrs. Weasley blinked, taken aback by the exotic beauty and bluntness of the woman in front of her, but her maternal instinct kicked in immediately upon seeing little Naruto.
"Oh, dear! Is it his first year?" Molly asked kindly. "Don't worry, dear. It's Ron's first time too. What happened is your son hit the wrong column. It's that one right there, right between platforms nine and ten. You just have to walk straight at it with confidence, and if you're nervous, it's best to do it at a bit of a run."
"Ah, I see!" Goki exclaimed, punching her palm with her fist. "Thank you!"
"You're welcome, dear." Molly checked the station clock. "And don't rush too much, the train leaves at eleven o'clock on the dot. You still have fifteen minutes. Plenty of time."
The words "plenty of time" echoed in Goki's mind like heavenly music. Her eyes sparkled and she looked down at her "little boy."
"Did you hear that, Naruto?" she said in a sickeningly sweet voice. "We have fifteen more minutes!"
Naruto felt a shiver run down his spine.
"Mom, wait, you already gave me a hug, people are staaar—"
He couldn't finish the sentence.
"My baby is going to be gone for months!" Goki shrieked dramatically, completely ignoring their surroundings.
With a swift motion, she trapped Naruto again. This time, Goki sat on a nearby bench and pulled Naruto to stand between her legs, drawing him tightly against her torso.
"Mmfhh!" was the only sound the young Saiyan managed to let out.
His face was buried once again, but this time with far more intensity. Goki hugged him so effusively that Naruto's face was completely sunk into the deep cleavage of her orange martial arts gi. The softness of her massive breasts surrounded him entirely, blocking his vision and nearly all his oxygen, while his mother's strong yet affectionate arms kept him pinned against her.
"I'm going to miss you so much... make sure you eat well... and don't get into fights unless you win... and brush your teeth..." Goki babbled, rocking side to side, rubbing her cheek against her son's spiky hair, while he was literally lost in the vastness of her feminine attributes.
The Weasley twins nudged each other, their eyes as wide as saucers, while Ron turned a deep shade of purple. Naruto, though mortified and fighting to breathe amidst so much "softness," let his arms drop to his sides, resigned but secretly happy to feel such overwhelming, protective affection one last time before boarding the train.
Finally, after what felt like hours for the poor (but envied) boy and barely a few seconds for the loving mother, Goki loosened her iron grip.
Naruto emerged from the depths of his mother's cleavage gasping like a fish out of water, his face completely red and marked by the pressure against the soft but firm Saiyan flesh. His hair was even messier than usual, and he wore a dizzy expression that teetered between mortal embarrassment and resigned affection.
"Mom... oxygen... need... oxygen..." Naruto panted, resting his hands on his knees to recover.
"Oops! I'm sorry, sweetie," Goki said with an innocent giggle, bringing her palms together in an apologetic gesture while her attributes bounced happily with the motion. "It's just that you're so squeezable. Sometimes I forget my own strength."
Nearby, the Weasley twins, Fred and George, watched the scene with a mix of awe and undisguised admiration.
"Fred," George whispered, not taking his eyes off the Saiyan woman. "I think I suddenly feel very lonely and need some maternal comfort."
"Agreed, George," Fred replied solemnly. "We should ask if she's adopting."
"Fred! George! Stop staring at the poor woman like that!" Molly Weasley scolded them in a hushed voice, smacking each of them on the back of the head, though she herself couldn't help but look with curiosity at the strange dynamic of that family.
At that moment, a skinny boy with round glasses and messy black hair (very similar to the Saiyans', curiously enough) timidly approached the group. He was dragging a trunk that looked like it weighed more than he did.
"Excuse me..." Harry Potter said, looking back and forth between Mrs. Weasley and the imposing Goki. "Do you know how to..."
Before he could finish, Goki spun around and looked him up and down. She immediately frowned.
"Goodness! You're all skin and bones!" Goki exclaimed, closing the distance to Harry with the speed of lightning, causing the boy to stumble backward in fright. "Don't your parents feed you? You need meat! Lots of meat!"
Harry, who had never received such attention (much less from such a beautiful and intimidating woman), stammered:
"Um... I... my aunt and uncle..."
"Unacceptable!" Goki reached into her martial arts gi and, as if by magic (or Capsule Corp technology that she used to store things), pulled out a massive roasted dinosaur leg wrapped in aluminum foil. "Here, eat this on the train. It'll help you grow strong like all my boys."
Harry took the leg of meat, which weighed almost as much as his owl Hedwig, utterly dumbfounded.
"Th-thank you."
Naruto, now recovered, walked over to Harry and patted him on the back in solidarity.
"Just take it, man. You can't win against her when it comes to food. I'm Naruto, by the way."
"Harry... Harry Potter."
Goki smiled in satisfaction, seeing that her son was already making friends. She checked the station clock; there were ten minutes left.
"Alright, boys," Goki said, snapping back into "coach mom" mode. "Now let's do this right. No breaking pillars. You have to run straight at that barrier between 9 and 10. Don't stop, and don't be scared."
Molly Weasley nodded, smiling kindly.
"Exactly. Percy will go first to show you."
The eldest Weasley boy crossed the barrier elegantly. Goki clapped excitedly.
"That's it! Magic!" Her eyes sparkled. "I wish I could go, but Broly promised to train with me in the gravity chamber this afternoon, and if I'm late he gets grumpy... and very intense."
Naruto shuddered, knowing exactly what his mother meant by "intense," and preferred not to think about it.
"Alright, Mom. I'm going," Naruto said, adjusting his backpack. He looked at the column—the correct one this time. "Thanks for... well, for everything."
Goki felt her eyes tearing up again. She crouched down to be at Naruto's eye level (well, sort of, since her breasts ended up right in front of the boy's face again).
"Remember: if anyone bothers you, use your head. And if that doesn't work, a teeny-tiny Kamehameha never hurt anyone, right?"
"Mom, I can't blast students with energy... I don't think."
"Well, only if it's necessary." Goki winked at him and then planted a loud kiss on his forehead. "Now run! Go and become the best warrior wizard in the universe!"
Naruto nodded, feeling a surge of determination. He turned to Harry and Ron.
"Ready?"
"Ready," the two of them said, still processing Goki's presence.
The three boys broke into a run toward the barrier. Naruto was in the middle. Just before passing through the magical wall, he cast one last glance back. He saw his mother, in her bright orange suit, waving with both arms high in the air and a smile that could light up all of London, shouting:
"DON'T FORGET TO WEAR CLEAN UNDERWEEEEEAR!"
The shout echoed throughout King's Cross station. Naruto, his face burning with embarrassment but sporting an unavoidable smile, crossed through the magical barrier, leaving the Muggle world and his loud, voluptuous, and loving mother behind, ready for his new adventure.
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End of Part 1
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Uploaded: 03/17/26
Updated (Corrected): ?/?/?
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Omake 1
The forest in the Scottish Highlands was an ancient and silent place—or at least it was until the Saiyan family moved nearby. Now, the trees crackled with static tension, and the animals had learned to migrate two counties over whenever "morning exercises" began.
In a secluded clearing, far from the house (and his mother's suffocating hugs), stood Naruto. The 11-year-old boy was standing with his eyes closed and his brow furrowed in deep concentration. The wind whipped at his messy black hair.
He extended his right hand, palm open to the sky.
"Remember the feeling," he told himself, searching through the memories of his past life. "Rotation. Power. Containment."
In his previous life, forming a Rasengan was as natural as breathing. But this body... this body was different.
A blue spark appeared in his palm. The air began to hum. The wind currents swirled, forming a small, erratic sphere of energy. But then, something happened.
His Saiyan blood reacted.
Where before there was only calm, pure Chakra, now the aggressive, volcanic Ki of his paternal heritage (Broly's heritage) was bleeding through uninvited. The blue sphere began to tinge with a pale, electric green. The sound of the Rasengan, which was usually a steady hum, started to sound like a failing jet engine: VRRRM-ZRRRT-VRRRM!
"Dammit!" Naruto grunted, gritting his teeth. "Too much power! Less Ki, more control!"
The ground beneath his feet began to crack. Small pebbles levitated around him due to the gravitational pressure his small body was unconsciously giving off.
The sphere in his hand grew, going from the size of a baseball to a basketball, and then to a beach ball, vibrating with terrifying instability. Arcs of green electricity leaped from the sphere, striking nearby trees and carbonizing them instantly.
"No, no, no!" Naruto tried to compress it, using his other hand to contain the energy. "This is supposed to be a precision attack, not a nuclear bomb!"
The Rasengan (or whatever that hybrid Ki-Chakra monstrosity was) was spinning so fast that the surrounding air heated up. Naruto felt he was losing control. His Saiyan nature screamed at him to throw it, to destroy everything in his path, while his ninja mind desperately tried to maintain its shape.
"Aaah, screw it!" he yelled.
Seeing that it was going to blow up in his face, Naruto twisted his body and slammed the unstable sphere into a massive granite boulder he used for sitting.
BOOOOM!
It wasn't a normal impact. It was a detonation. A pillar of green and blue light shot into the sky, parting the clouds over Scotland for a moment. The shockwave bent the trees flat within a hundred-meter radius and kicked up a cloud of dust and dirt that took minutes to settle.
When the dust finally cleared, Naruto was standing in the center of a perfectly spherical, smoking crater. He was covered in soot, his clothes slightly scorched, and his hair standing even more on end from the static. The boulder was gone; not even pebbles remained—it had been atomized.
Naruto coughed, exhaling a small puff of gray smoke. He looked down at his hand, which was trembling slightly and bright red.
"Mental note," he muttered hoarsely. "Dad's Ki and the Rasengan don't mix well... yet."
Suddenly, in the distance, Goki's amplified voice boomed from the house, probably miles away:
"NARUTO! MAPLE SYRUP OR HONEY FOR THE PANCAKES?! AND DON'T DESTROY THE FOREST, IT SCARES THE FAIRIES!"
Naruto sighed, his shoulders slumping, and a giant drop of sweat slid down the back of his neck.
"...Honey, Mom. Honey," he whispered to himself, before dashing out of the crater so as not to keep the strongest (and most loving) woman in the universe waiting.
End of Omake 1