Naruto: Reincarnated as a Demon King

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After completing a full day of training, Raiden dragged his exhausted body home.

The Zoan-type Devil Fruit had significantly enhanced his physical abilities, but at the same time, it had also greatly increased his appetite, especially after a full day of intense training.

Clutching his rumbling stomach, Raiden climbed up to the top floor. His home was a small one-bedroom apartment, a personal living space assigned by Konoha.

The place wasn't large, but it had everything he needed.

"Damn… I forgot to eat. This is bad."

Looking up at the dark sky, Raiden felt like even the stars above were blurring together. He knew what that meant he was so hungry that his vision was starting to go hazy…

Because of the black flames that had appeared earlier, Raiden had spent extra time at the training grounds in the back hills, trying to figure out how to develop his Devil Fruit abilities.

That "little extra time" had turned into nearly two whole hours.

"Guess I'll have to make do with instant noodles tonight… It's too late to bother anyone now."

But just as Raiden reached the door of his apartment, he suddenly noticed something strange.

The lights were on.

He was 100% sure that when he left the house that morning, he had turned everything off.

"Could it be… a thief?"

His exhaustion vanished instantly, replaced by sharp alertness.

Quietly, Raiden crept up to the door, gripping the broom from the entrance.

"Who the hell dares to steal from me?! Tired of living, huh?"

His apartment wasn't big from the entrance to the living room, it was just a few steps.

The moment Raiden rushed inside, he immediately spotted a shadowy figure rummaging through his fridge!

Bastard!

Someone actually dared to raid his fridge?!

Raiden was already starving.

He had been looking forward to surviving the night on a few stale pieces of bread and instant noodles…

And now, someone was stealing his food?!

Unforgivable.

Raiden swung his broom and charged in full force.

"YOU DARE STEAL MY FOOD?!"

"YOU DARE TOUCH MY FRIDGE?!"

"I'M GONNA BEAT YOU SO BAD YOUR OWN MOM WON'T RECOGNIZE YOU!"

"STEAL! TRY STEALING AGAIN, I DARE YOU!"

"I WILL KILL YOU WITH BLACK FIRE, MOTHERFUCKER!"

WHACK! WHACK! WHACK!

For a moment, the entire living room was thrown into chaos.

"STOP! STOP, YOU BIG IDIOT!"

The figure curled up, shielding their head from Raiden's merciless broom attack, their voice soft and pleading. Hearing the familiar voice, Raiden paused mid-swing.

"Huh? That voice sounds… familiar?"

Lowering the broom, Raiden finally got a clear look at the intruder.

"IT'S ME! IT'S IZUMI! IZUMI UCHIHA!"

Of course.

The girl cowering on the floor, face covered in bruises, was none other than Uchiha Izumi.

Raiden's pupils shrank, a cold sweat dripping down his temple, sliding into his collar.

Crap.

CRAP.

Is today cursed or something?!

Should he start singing "Rest in Peace" for himself now?

"Why are you just standing there?! Help me up, dammit!"

Clutching her aching face, Izumi glared at him, her eyes glassy with tears.

"It HURTS, you idiot!"

"Uh… Oh… R-Right."

Snapping back to reality, Raiden hurriedly tossed the broom out the window.

THUMP!

A loud thud was immediately followed by an angry yell from outside.

"WHO THE HELL THREW THAT?!"

Raiden ignored the commotion outside and cautiously helped Izumi onto a chair, then stood beside her like a guilty child.

During the Nine-Tails attack last year, Raiden had stumbled upon a crying, lost Izumi in the chaos.

He had carried her to safety, taking her to the evacuation shelter. From that moment, their fate became intertwined.

After eating the Devil Fruit, Raiden's physical capabilities had skyrocketed but so had his caloric needs.

Yet, as an orphan living off Konoha's welfare, he barely had enough to eat three-quarters of a meal a day, and that was without eating meat; his constant hunger was making training even harder.

One day, Izumi found out about his situation. Since Raiden had saved her life, she decided to return the favour.

Izumi's father had died in the Nine-Tails attack, leaving only her mother to run their family's dessert shop.

Fortunately, the shop was well-supported by the locals. Despite being a single-parent household, they lived comfortably.

Izumi invited Raiden to help out at the dessert shop in exchange for free meals three full meals a day, plus occasional chocolate treats.

For someone burning through calories at an insane rate, this was like a miracle from the heavens!

"H-Hey! That HURTS!"

"YOU IDIOT! BE GENTLER!"

Raiden awkwardly held a cotton swab soaked in medicine, hesitant to apply it. If he touched her bruises, Izumi screamed like she was being murdered.

If he didn't, she glared daggers at him.

"What are you waiting for?! FINISH CLEANING THE WOUND!"

Izumi huffed, clearly frustrated.

She had lugged a heavy bag of food all the way up to Raiden's rooftop apartment, knowing he'd forget to eat.

And what did she get for her troubles?

A broom beatdown.

And it wasn't the first time either!

Still, she tried to calm down.

As she stepped inside, Izumi had nearly passed out from the stench of Raiden's messy apartment. She spent two whole hours cleaning up the disaster zone, just to make the place livable.

After all that, she only wanted a drink and the moment she opened the fridge…

Raiden busted in swinging.

"Ugh! This is SO frustrating!"

"Little Rai…" Izumi reached for a boiled egg and gently pressed it against her bruised cheek.

"Can you PLEASE not call me that?"

Raiden rolled his eyes.

His full name was Raiden Alistair, a name full of power and dominance, but it's an odd name for the Naruto world.

And yet, this brat insisted on calling him "Little Rai"

Why not just go all the way and call him Baby Rai?!

"SHUT UP AND SIT DOWN!"

Izumi snapped, hands on her hips, eyes blazing.

"Y-Yes ma'am…"

Raiden lowered his head, looking every bit the guilty party.

Today, he'd accept defeat.

Because…

He hadn't eaten yet.

And that huge bag of food was calling his name.

Growwwl—

His stomach spoke for him.

Watching him stare hungrily at the food, Izumi let out a sigh. She was furious, but she also didn't want him to starve.

"Fine. Eat first."

"After that… we need to talk."

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