I’ve remade something I posted a while ago!
I’ll be posting the rest of the story step by step, so stay tuned!

something I posted before↓

【Rules】
Participants run back and forth between lines set 20 meters apart, following an audio cue.
When the sound plays, they must immediately start running and reach the opposite line before the next sound.
The interval between sounds gradually shortens, increasing the running pace.
The game does not end until someone completes 100 runs.
Anyone who fails to reach the line before the sound is disqualified.
If a participant is disqualified, a miniature gas capsule implanted inside their body will automatically activate.


On a floor marked with white lines, the contestants—gathered from various places—stand in a single row.
A young woman, her face pale, looks down at the ground. Her fingertips tremble slightly, and her lips are pressed tightly together.
Some clasp hands with those beside them; others stifle their sobs and fight back tears.
Without exception, every one of them is consumed by anxiety and fear.
Here, the only way to survive is to keep running.
From my seat in the stands, a little above the floor, I observe the scene below.

[10 seconds to start…]
A synthetic voice echoes throughout the vast arena.
A sharp wave of tension ripples through the air.
All at once, the contestants’ eyes snap toward the direction they’ll be running.

[5 seconds… 3, 2, 1… Start!]
With the signal, they all dash forward at once.
“No, no, nooo!!”
“Help me!”
“I swear I’m going to survive!”
[Do… Re… Mi… Fa… So… La… Ti… Do…]
[Do… Ti… La… So… Fa… Mi… Re… Do… one]
The mechanical melody continues steadily, unfazed.
With each round, the interval between notes grows ever shorter.
Those who fail to reach the other side before the sound ends are automatically eliminated.


The display on the monitor reads “72.”
Up to this point, not a single person has dropped out.
All of them, gasping for breath, are still desperately running.
[Do… Re… Mi… Fa… So… La… Ti… Do…]
[Do… Ti… La… So… Fa… Mi… Re… Do… seventy-two]
“Hah… Haa…! No… Damn it… Damn it!!”

“Ha! Ha! Look at that! Never seen a chick running with her tits bouncing all over the place before!”
Crude laughter erupts from one section of the stands, quickly drawing others to join in the ruckus.
All eyes are on a woman whose generous chest bounces conspicuously as she runs.
The violent motion breaks her bra, leaving her exposed—but she pushes forward desperately all the same.
Her face is a mess of sweat and tears.
Still, she never stops.
No matter how humiliating it is, she has no room left to care.
If she stops moving, it’s all over.
[Do… Re… Mi… Fa… So… La… Ti… Do…]
“Gwah!?“

Her legs tangled and she fell hard, her body hitting the floor with a dull thud.
Immediately, a sharp hiss—psshhh!—rings out across the arena.
“Hah… Hah… Ngh…! Nngh—Nnngh!?”

A miniature gas capsule implanted inside her body activates, causing her abdomen to swell rapidly before everyone’s eyes.
The crowd gets even more worked up at the sight.
“Ha ha ha! Look, her stomach’s blowing up!”
“Whoa, check it out—her belly’s getting huge! That’s insane, lol!”
Cheers and laughter erupt from all sides. Some even point their phones to record the scene.
Her face twists in agony and terror—but even that seems to amuse the audience.
She’s still groaning, but that won’t last much longer.


[Do… Re… Mi… Fa… So… La… Ti… Do…]
[Do… Ti… La… So… Fa… Mi… Re… Do… seventy-six]
“Hah… Haa… hh… hhyuu… hyu… hh…”

Just beside me, a woman with a flushed face and barely any breath left pushes herself forward.
Her eyes are unfocused, her hair slicked to her cheeks with sweat, tears mixing in as they drip down.
Her expression is twisted with pain and despair, harsh breaths escaping her lips.
Her steps falter, her body swaying unsteadily from side to side.
“Haha! Looks like she’s next! Poor thing—too bad!”
Jeers echo from the stands.
It’s clear she’s close to her limit.
There’s no way she’ll make it to one hundred in this state.
[Do… Re… Mi… Fa… So… La… Ti… Do…]
“Ah…!!”

Thud!
She loses her balance, her legs tangled, and crashes hard to the floor.
Laughter and cheers erupt from the stands.
“…ngh… no… stop… someone… please… uuh…”
Her trembling voice fades into sobs.
She curls up small on the floor, eyes wide with terror, shoulders shaking uncontrollably.
As if trying to escape the Grim Reaper closing in, she drags herself along by clawing desperately at the floor.
“Whoa—did you see that? She totally wiped out! Hilarious!”
“What a klutz! There’s your punishment game—ha ha!”

Pssshhh!
“Hah… ugh… ah… ngh… kuh… urgh— blrgh!? Bleeeh!!”

She can barely breathe, vomit spilling from the back of her throat.
Her chest, already hyperventilating from the relentless exercise, rises and falls in ragged waves as her stomach keeps swelling without mercy.
“Ha ha ha! Look at that—she’s just a fat sack of meat puking everywhere!”
“Kya ha ha! Hey, hey! How does it feel right now?!”
Cheers and filthy jeers fly one after another from the crowd.
Here, screams and tears are nothing more than entertainment.


[Do… Re… Mi… Fa… So… La… Ti… Do…]
[Do… Ti… La… So… Fa… Mi… Re… Do… eighty]
“Cough… gah… I—I can’t… please, someone help me…”
The pink-haired girl staggers away from the shuttle run line, barely able to keep her feet beneath her. She heads for the exit, legs wobbling and on the verge of collapse.
“Please! Please open it! Let me out! I can’t take this anymore!”
She bangs on the door again and again, clinging to a shred of hope. But the exit is locked tight—it doesn’t budge an inch.
Pssshhh!
“No… no, stop—please!!”
The only reply to her desperate screams was the hiss of the gas capsule activating inside her.

She collapses onto the floor, clutching her rapidly swelling belly with both hands in desperation.
“Gwaaah!! Gah—gaaah!!”
The arena echoes with her choking sobs and dying screams.
“Did that dumb bitch really think she could escape?!”
“Wow, her belly’s even bigger than her tits now—how pathetic! She’s gonna pop next, right?!”
The crowd bombards her with a barrage of jeers and excited shouts—a mixture of ridicule and morbid curiosity.


With the third girl’s scream, the entire arena surges with an even more frenzied energy and madness.
It was a spectacle—an atmosphere so wild it could only be called a festival.


BellyBurst Shop

▶ BellyBurst Shop

By 40P

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