Deep inside Raja’s undergroundsuper-secret, super-overpowered, absolutely ridiculous lab, a small, white-haired demon childwoke up screaming.

"LET ME OUT!!!"Rui shrieked, thrashing wildly againstenchanted chainsthat glowed with ancient runes. Hisspiderweb abilities were gone, his connection to Muzan severed, and worst of all—there were no aesthetic spiderweb curtains in his cell.

Raja, standing outside the enchanted prison with acoffee mug that read ’SCIENCE RULES, DEMONS DROOL’, took a slow sip and sighed.

"Wow. You’re loud for someone who just woke up from a demon-beating coma."

Rui glared, hisfangs bared."What have you done to me, you filthy human?!"

Raja smirked."Oh, nothing much. Just kidnapped you, stuffed you in a magic box, teleported you here, and removed your Wi-Fi connection to Daddy Muzan."

Rui blinked."...What?"

"You’re officially off the Muzan Network, kiddo. No more ’Demon Netflix’ for you."Raja waggled his eyebrows."Welcome to the realm of unpaid experiments! Hope you survive!"

For the nextweek, Raja and Tamayoignored everything else in lifeexcept theircrazy experimentstoturn Rui back into a human.

Meanwhile, somewhere across Japan...

Muzan Kibutsuji, Lord of All Evil,suddenly choked on his tea.

"WHY DO I FEEL LIKE I’VE LOST A CHILD?! WHICH ONE OF YOU DISAPPOINTMENTS DIED?!"he roared at hisKizuki subordinates, smashing the nearest table.

The demons trembled,"M-Master Muzan, w-we don’t know..."

Muzan’s facetwisted in rage."WHO KEEPS KILLING MY DEMONS?!"

Meanwhile, back at the lab...

Raja was casually spinningvials of bloodin a test tube, grinning."Heh. Somewhere out there, Muzan’s having an aneurysm."

Tamayo gave him ajudgmental mom-look."Raja, can you please focus? We’re making history here!"

Raja rolled his eyes."Ugh, fine. No fun allowed in SCIENCE, I guess."

After aweekof testing, burning things,and ignoring Yushiro’s dramatic complaints, Raja finallycracked the code.

"HAHAHA! IT WORKS!"Raja cackled, holding up aglowing blue vaccine.

Tamayo’s eyes widened."Are you sure?"

"Tamayo-san, my genius is beyond your comprehension."

"That’s... not reassuring."

Ignoring her concerns, Rajastabbed Rui with the vaccine.

Cue instant, dramatic pain.

Rui’s bodyconvulsed, his eyes rolling back asblack blood BURST from his veins.

"AAAAAAAAAAAAAAAAGGGGHHHHHHH!!!!"Ruiscreamed like a banshee,flopping like a fish out of water.

Tamayo winced."That... does not look comfortable."

Raja shrugged."Eh. Science."

Muzan, wherever he was, probablyfelt that scream in his SOUL.

Aftera week in a coma, Rui finally woke up.

Instead of thecold-blooded demonhe used to be, Rui’sentire personality reset.

"M-Mother? Father?"Rui whispered,his red eyes brimming with tears.

Tamayo gently stroked his forehead."They’re gone, Rui... but you’re free now."

After one week of checking on Rui, he let out with an enchanted bracelet on him to monitor and check on Rui’s body, mind, and soul.

Rui sniffled."So I can eat normal food now and play with other kids ?"

Raja grinned."Yup. You’re officially Wolverine now. Bonus: Super regeneration."

Ruiimmediatelyburst intohappy tearshe doesn’t know what wolverine is but he can do normal kid’s stuff without getting sick.

"I CAN EAT CAKE?! I CAN EAT RAMEN?! I CAN PLAY IN THE SNOW?!"

Tamayo nodded."Yes, dear."

Ruiclapped his hands together, eyes sparkling."GOD, PLEASE BLESS THIS MAN. AND PLEASE REINCARNATE MY PARENTS IN A LOVING FAMILY. ALSO, MAKE SURE I NEVER LOSE MY HAIR, AMEN."

Rajadeadpanned."This kid prays a lot for someone I kidnapped."

Tamayosmiled."He’s happy. Let him be."

Next, Rajaturned to Tamayo.

"Alright, your turn, doc."

Tamayopaused."I... I don’t know if I want to be human again."

Rajanarrowed his eyes."Fine. You have five seconds to decide before I stab you with the needle anyway."

Tamayo:"W-WHAT?!"

Five seconds later...

STAB new vaccine 2.0. Created in just one week and it directly burn the Muzan blood directly and contain the Mutational powers in the DNA, Raja created X-MEN.

Tamayoscreamed, thenglowed dramatically.

When the light faded, she blinked.

"I... I can still make illusions...?"

Raja smirked."Superpowered human, baby. Congrats!"

Yushiropouted."I WANT BE HUMAN TOO!"

Raja:"Sure, kid."STAB.

Yushiro:"WAIT, WHAT—AGH!"

Suddenly, Yushirocould mind-control people like Professor X.

Raja grinned."Alright, mind-reader boy, don’t use your powers on people or I’ll delete them, got it?"

Yushiropaled."Y-YES SIR."

Meanwhile, theDemon Slayer Trio—Tanjiro, Zenitsu, and Inosuke—wereforced into hardcore trainingunder the Hashiras.

How?

Because Rajablackmailed the Hashiraswith:

✔Endless gourmet food.

✔Bribing them with gold.

✔Threatening to fight them for fun.

By theend of the month, Tanjiro trained underFlame Hashira, Inosuke underWind Hashira, and Zenitsu underSound Hashira.

Andsomehowthey were nowalmost Hashira-level fighters without even unlocking the Slayer Mark.

"I FEEL SO POWERFUL!" Inosuke screamed, flexing dramatically.

Zenitsu:"I JUST WANT TO LIVE IN PEACE, WHY AM I SUFFERING?!"

Tanjiro:"We should thank Raja for this opportunity!"

Raja, watching from the shadows:"They have no idea I planned this just for my entertainment."

Finally, theMugen Train mission was announced.

Rajasentthe trio along withFlame Hashira Rengoku, nowfully upgraded to ’Flame Hashira 2.0.’

But, of course, Raja wasn’t just going to sit this one out.

"Stealth mode activated!"Rajavanished into the shadows, planning towatch the fightfor fun.

If anything unexpected happened?

He’d step in.

If Akaza dared to kill Rengoku or another Demon enters the fight?

Well...

Then it’d be time to burn the whole train station down.

TO BE CONTINUED...🔥

Source: Webnovel.com, updated by lotustale.com