Reincarnated in DxD With the 100X System

Darkness.

A dull throb spreads at the back of my skull, the pressure growing heavier with each second.

Then—realization kicks in.

Are you kidding me?

I blink up at the flickering bathroom light, its buzzing sound somewhere between a dying fly and a bad horror movie effect.

My body feels like lead. Limbs sluggish. Breath shallow. Something warm trickles down my scalp—probably blood.

Vision swims. Mind foggy. But I don't need a medical degree to put two and two together.

I'm dying.

And the worst part?

It's not in some grand battle.

Not in a heroic sacrifice.

And certainly not from the legendary Truck-kun.

No.

I, Malrik, met my end by slipping on a wet floor mat and cracking my skull on the damn sink.

…This has got to be a joke.

A weak chuckle escapes my lips, though it comes out more like a wheeze.

Of all the ways to go—why this?!

Where's the dignity? The drama? The cool factor?!

If I had to die young, I always figured it'd be in some larger-than-life way—maybe pushing a kid out of the path of an oncoming truck, or getting caught in some supernatural disaster.

Something that would at least earn me a footnote in someone's story.

But this?

This is just humiliating.

I exhale, the air rattling in my chest. "So this is how it ends, huh?"

My voice is hoarse, barely above a whisper. "Not with a bang, but with a bathroom slip."

The headache sharpens, my thoughts unraveling.

Above me, the ceiling light flickers again.

For a brief moment, I wonder if that's the universe mocking me.

Oh, great hero, bravely defeated by a treacherous puddle!

...Wait.

This feels familiar.

Maybe this is how all those reincarnation stories start—some absurd accident, then boom—wake up in another world, overpowered as hell.

If that's the case, I demand compensation.

Because if some god is watching this disaster unfold, they better make up for this embarrassment with something ridiculously broken.

My body feels cold.

The edges of my vision darken.

But my final thought isn't fear.

It isn't regret.

It's pure, unfiltered annoyance.

"Great. My epic isekai adventure starts by slipping in the shower. How humiliating."

And then…

Nothing.

No divine revelation.

No glowing light.

No godly voice welcoming me to a new world.

Just silence. 

Until—

I wake up with a groggy groan, my entire body feeling... wrong.

Heavy. Sluggish. Sweaty?

Ugh.

I feel like I just ran a marathon in the middle of summer—except I know for a fact that's impossible, because I hate running.

Wait.

I flex my fingers, and red flag number one hits me like a truck.

Something's off.

My hands feel… thicker. Pudgier. Wrong.

I blink rapidly, fighting past the weird haze clouding my mind.

The bed underneath me is ridiculously soft, like I'm sinking into a pile of silk.

My body feels foreign, like I'm wearing a fat suit, except…

It's me.

What the hell?

With a grunt, I roll over—oh wow, even that takes effort?—and force myself upright.

My entire body jiggles.

I freeze.

…That's not normal.

Panic surges through me.

I whip my head around, scanning the absurdly luxurious bedroom.

Massive bed? Check.

Ornate wooden furniture? Check.

Giant chandelier that screams "rich people aesthetics"? Check.

But that's not what grabs my attention.

No.

It's the full-length mirror across the room.

I hesitate.

A deep, terrible suspicion coils in my gut—one I really don't want to confirm.

But I have to.

Slowly, I drag myself to the mirror, each step sinking into plush carpet like quicksand.

My heart pounds.

I look into the glass.

A chubby, round face stares back at me.

I blink.

The reflection blinks.

I lift a trembling hand and squeeze my cheeks.

...They squish.

"Oh, hell no."

I slap my hands onto my stomach. It jiggles.

My arms? Thick. Soft.

My chest? Fluffier than I remember.

"W-Why am I so squishy?!" My voice cracks. "Wait… am I fat? No way—please let this be a nightmare!"

I twist, turn—desperately trying to find some optical illusion that explains this away.

Nothing.

Then, out of the corner of my eye, I see it.

A window.

I stumble toward it, breathing way too hard from the effort (dear god, when did walking become a workout?), and yank the curtains open.

My heart stops.

Outside, the skyline looks painfully familiar.

The streets.

The school in the distance.

The distinct blend of European and Japanese architecture.

I've seen this exact setting before.

But not in real life.

No.

This is Kuoh Town.

The city from High School DxD.

My jaw drops.

"No. No way. I reincarnated in DxD?!"

A fresh wave of panic floods my system—not just from recognizing the world, but from what it means.

Devils.

Angels.

Fallen angels.

This place is a goddamn supernatural powder keg waiting to explode.

And me?

I turn back to the mirror.

My fat face is still glaring at me.

As if to mock me, my stomach lets out a soft gurgle.

I stare down in absolute betrayal.

Okay. Deep breath. Think.

I scan the room again, searching for anything useful.

A neatly arranged family photo on the nightstand catches my eye.

My heart sinks as I pick it up.

There, in the center, is me—or rather, the body I'm now inhabiting.

A chubby, smug-looking teenager, dressed in expensive clothes, standing beside a pair of distinguished-looking adults.

My brain clicks into overdrive.

Malrik Van.

Cool name? Check.

Memorable surname? Check.

Wealthy? Judging by this ridiculously fancy room and my spoiled-looking past self?

That's a solid yes.

A wave of realization crashes over me.

I'm not the protagonist.

I'm not even a recognizable side character.

I'm just some rich, spoiled, unimportant fat kid in the background of a world filled with:

🔹 Battle-hardened warriors.

🔹 Legendary beings.

🔹 Harem-building protagonists.

…Oh, crap.

——————————

I slump onto the massive bed, my weight making it creak ominously.

"So let me get this straight," I mutter, rubbing my temples. "I reincarnated in DxD. The anime with devils, busty demon princesses, and... ridiculous anime logic."

I pause.

Glance down at my pudgy fingers.

"...And I ended up like this?"

I exhale slowly. Okay. Two options:

🔹 Option One – Descend into despair and accept my fate as a background character doomed to be ignored.

🔹 Option Two – Fix this.

My fingers tighten around the sheets, determination sparking.

Yeah. Screw that.

If this is my second shot at life, there's no way in hell I'm spending it waddling around in the background while Issei freaking Hyoudou steals all the spotlight.

I move to my desk, hands clasped together, staring at the school uniform that's stretched uncomfortably tight around my pudgy stomach.

Deep breath. Time to assess the situation.

🔹 I'm in Kuoh Town.

🔹 I'm attending Kuoh Academy.

🔹 I'm in the same year and class as Issei Hyoudou.

That last part hits me like a brick to the face.

Issei Hyoudou.

The legendary Oppai Dragon. The guy who somehow fumbles his way into becoming one of the strongest beings in existence, surrounded by anime waifus.

And me?

I glance down at my chubby hands… then at the mirror across the room.

…I look like someone who'd get bullied by anime protagonists just for existing.

My stomach twists—not from hunger (for once), but from sheer, unfiltered dread.

This world isn't safe.

Sure, it's got every anime waifu a man could dream of, but it's also crawling with supernatural horrors.

🔹 Fallen Angels? Ruthless and willing to murder on a whim.

🔹 Stray Devils? Literal man-eating monsters.

🔹 Gods, dragons, supernatural wars? Yeah, no thanks.

A bead of cold sweat rolls down my forehead.

If I stay like this—weak, overweight, and completely ordinary—I'll either:

1️ Get used as cannon fodder when the supernatural chaos kicks in.

2️ Be stuck as the comedic relief fat guy with zero screen time.

Neither of those options sit well with me.

I grit my teeth.

"No way am I letting Issei freaking Hyoudou look cooler than me," I mutter, fire burning in my gut.

"Not in this life."

I slap my cheeks, the sting sharper than expected.

Focus.

If I want to survive and thrive in this world, I need to start working now.

Step 1: Lose this damn fat suit.

Step 2: Get stronger.

Step 3: Prepare for the supernatural chaos before it blindsides me.

I push myself up from my chair, my entire body protesting the movement.

Everything feels sluggish. Untrained. Weak.

But that's temporary.

I glance out the window, looking toward Kuoh Academy.

A smirk tugs at my lips.

"A High School DxD world full of devils, fallen angels, and busty anime girls?"

I shake my head, letting out a short laugh.

"Yeah, sounds awesome—until you realize you reincarnated as the comic relief fat guy."

Not for long.

This is my second chance.

And I'll be damned if I waste it.

I roll onto my side, scowling at the ceiling.

If there was ever a time I needed an isekai cheat system, this would be it.

🔹 Where's my blessing from the gods?

🔹 My OP power?

🔹 My broken ability that lets me steamroll through life?

I groan, dragging a hand down my face.

"What, do I not qualify for a cheat system just because I died in a stupid way?"

I point at the sky, accusingly.

"Listen here, cosmic administrators, I demand compensation for getting sent off in the lamest way possible!"

Silence.

I snort. Of course.

Nothing happens.

Figures.

"Guess I'm on my own, huh?"

And then—

[Ding~]

『Congratulations! 100X System Activated!』