The Demon World...
A twisted, bizarre place filled with dark castles and stranger beings.
In the heart of one such fortress, a young man sat on a plush sofa—confused, dazed, and being led by the hand like a lost child.
Kneeling before him was a bald, horned old man with an over-the-top theatrical voice.
"Would you be willing to become... my grandson?" the strange elder asked with gleaming eyes.
Are you serious?! Shouldn't I be your dad instead, old man?!
Of course, he only dared say that in his head.
He was still trying to figure out whether this was a dream or some weird fevered hallucination. The last thing he remembered was collapsing at home after... rewarding himself with a Clara doujin. (Don't judge.)
When he came to, this surreal scene greeted him.
But he knew exactly what he was looking at.
As a hardcore fan of Welcome to Demon School, Iruma-kun!, it didn't take long for him to piece things together.
Wait... did I just become Iruma?! Holy crap! I finally escaped that soul-crushing 996 work culture back home!
The excitement overwhelmed him. So much so that he blurted out the first thing that came to mind:
"Does this gig come with health insurance and a pension plan?"
"...Huh?"
Sullivan—the eccentric old demon before him—tilted his head, utterly baffled.
"Health insurance? Pension? What are those?"
Seeing that blank expression, Iruma finally accepted it—this wasn't a dream. No matter how absurd his dreams got, they always involved soul-sucking jobs and unpaid overtime.
This was different.
This was real.
Sullivan, ever dramatic, clasped his hands together and pleaded, "I don't know what 'health insurance' is, but I do know I've always been jealous of my friends showing off their grandkids!"
"Become mine, and I'll give you everything you could ever want! Food! Clothes! A place to live! I'll spoil you rotten!"
Iruma blinked.
Honestly? He didn't really care either way.
"Sure," he replied flatly, as if agreeing to dinner plans.
On the outside, he looked calm and collected. But inside?
Full panic.
Still, a small part of him was thrilled. If he really was Iruma now, this world had all kinds of perks to offer.
No more taxes... no more overtime... and I've got plot armor? Count me in.
"Yay! That was easier than I thought!" Sullivan cheered like a kid, snapping his fingers.
Poof!
With a puff of cotton-candy-like smoke, Iruma's clothes were replaced with a bizarre but perfectly fitted school uniform.
He looked down, mildly impressed. "Wait... I'm not seriously going to school here, am I?"
He didn't hate the idea, honestly. Compared to the hellish education system of Earth, even a demon school sounded like a vacation.
Sullivan beamed. "Of course! You're my beloved grandson! I've already taken care of everything—school admission, dorm, meals, supplies..."
As he spoke, he pulled out all sorts of weird magical items: a living textbook with teeth, and a potion bottle that started talking to him.
"Since you missed a lot of schooling with your human parents dragging you around," Sullivan explained, "I've enrolled you in the finest academy in the Netherworld!"
"Nothing to worry about. Your grandpa has it all covered!"
"Ahhh~ The word 'grandpa' is just so lovely!"
"I'll even take a photo of you at the school gates on your first day!"
Iruma forced a smile. This guy... never stopped talking.
How did the original Iruma survive this chatterbox grandpa without losing his mind?
"Thanks, Grandpa," Iruma said, putting on a good act. "But I am human... won't going to a demon school be a bit of a problem?"
Acting is everything in life.
Sullivan gave a thumbs up. "As long as no one finds out, you won't get eaten!"
"Wait—eaten?!"
Before Iruma could fully freak out, Sullivan uncorked a huge bottle of sparkling purple perfume and dumped it all over him.
Oddly enough, he didn't end up drenched. The liquid absorbed into his skin instantly, leaving behind a strange but pleasant scent.
"Don't worry," Sullivan said with a grin. "That was a high-grade concealment potion. It'll completely mask your human scent! You'll blend right in."
With another snap of his fingers, a tall red-haired butler stepped into the room—cat-like ears twitching in unison.
His suit was flawless. His gaze? Icy.
"Opera," Sullivan chirped, "would you kindly prepare dinner for us?"
"Understood, Chairman," Opera replied, expressionless, and silently walked away.
Leaving just Iruma and his new grandpa alone.
...and the awkwardness kicked in immediately.
With Opera gone, the room fell into an uncomfortable silence.
Sullivan tried to keep the mood light. "No worries~ Let's eat together, okay?"
After a surprisingly average dinner and a hot bath, Iruma was shown to his new bedroom.
Spacious. Luxurious. Bed fit for a king.
It was everything a working-class human could only dream of.
But that wasn't the biggest surprise of the night.
On his way back from the bath, a robotic voice echoed in his head:
[Loading...]
[System Installation Complete]
[Would you like to activate?]
[Yes/No]
His eyes lit up.
"YES, YES, YES!" he shouted, practically mashing the "Yes" button in his mind.
I can't believe it... Not only did I transmigrate into a fantasy world, I got a cheat system too?!
He could already feel his ego inflating.
This was going to be fun.