The Abandoned Mine

"Hyiiit!! Kyaaaaaaah!!"

Mio's hips jerked and bucked hard once more.

Unable to endure the sensation of her womb being pressed down firmly from behind the wall, she shook her little head wildly.

"Too intense for you?"

As Nox eased up on the pressure and stimulated her again with only a quarter of the force he'd used before—

"Hiih…… nnnh…… aaaaah……."

Mio lost her mind to the tentacle's womb massage seeping through the thin wall separating them.

It was weaker than at first, sure, but that thin, relentless pushing and tapping—the pleasure stimuli radiating from somewhere impossibly deep inside—was mercilessly scrambling her thoughts.

"Nnngh…… hiih…… in, deeper inside, again……!"

From the flushed pink flesh at her front, clear nectar was already dripping down, drop by drop, honest and shameless in its surrender.

Her slender waist trembled violently.

"S-something's wrong…… only from, only from behind……!"

Her voice crumbled into sobs at the edges.

In her head, the last shred of her reason was screaming—this is wrong, you can't fall apart here.

But her body wasn't listening to that scream at all.

The soft touch that had been teasingly rubbing her womb began, slowly, to slow down.

"Huh... eh?"

The very moment Mio lifted her hazy eyes—

Shluuuurk—!!

The tentacle that had been rubbing her inner walls began withdrawing, all at once, pulled out in a single breath.

"Hgyaaaaaaaah!"

It didn't feel like something being pushed from inside out, the way expelling something would.

It felt like something gripping her entire self and forcibly hauling it out—

A sensation completely inverted in direction, one she had never once experienced in her life.

Vrrrrrrrrrrr—!!

"Ohhhhhhhhhhhhhh!"

Different from the feeling of expulsion entirely.

The stimulus of the tentacle being ripped out of her came crashing up all at once, all together, in a span of seconds.

Her anus, forced wide open by the tentacle, had no time to clench shut.

One thick segment spread the narrow entrance and slipped free—

Pah—

The rim, clenched tight for an instant, immediately gaped open again around the next segment.

There was no chance for it to close.

Opening, trying to contract, forced open again.

Before her sphincter could so much as begin to recover its shape, another thick ridge dragged across it, tearing free in sequence.

"Hiih, h-hii……"

The delicate nerves of that tender rim, rubbed raw without ever being allowed to contract, stood rigidly on end only to be crushed under the next stimulus.

Every time it stretched open, every time it was rubbed again, a fresh wave of electric tingling piled on top of the tingling that hadn't yet faded, without pause.

Vrrrt— vrrrrt—!!

When the extraction came even faster—

"Ohhhhhhhhhhhhhhhhh!"

The long tentacle caught at every ridge, snagging the flesh around her entrance and stroking her out from the inside, all in one continuous drag.

At the sensation of every single ridge flipping and popping free as it went—

Mio's small body, clinging to the tentacle, sprang upward like a drawn bow.

Her toes curled taut.

Her hips arched back all on their own.

Between her young lips slipped a sound that was neither scream nor moan—something animal.

"O-oooh…… no, not like that…… not all at once like that……!"

Her 157cm frame shuddered in fine convulsions as it hung from the tentacle.

Her two legs, wrapped in white knee socks, splayed and quivering helplessly,

And her sweat-dampened sky-blue hair clung messily to her flushed cheeks and the nape of her neck.

Her small chest rose and ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠fell in gasps with every desperate breath.

Her blue eyes, losing focus, rolled upward and trembled pitifully.

From the flushed pink flesh at her front, the nectar she could no longer hold back stretched into threads and dripped down in strings.

And then the tip of the tentacle—its thin, soft end—pressed firmly against the back wall of her anal entrance as it pulled free.

Vrrrrrrrrrrrrr—!!

The moment that taut-stretched entrance was released all at once with a soft pop, her strung-tight hips sprang upward, convulsing through empty air.

"Haaahhh!! I'm, I'm comingggg!!"

Spurt!!

And because she had held it back, never once letting herself tip over—

The orgasm that finally burst free was more violent than any before it.

The flushed flesh at her front spasmed and quivered in tandem as the dammed-up nectar gushed out, arcing thin threads into the air.

Fwiiiiish!!

Her emptied anus clenched uselessly over and over, trying to squeeze down around a tentacle that was no longer there.

The hollow emptiness of having nothing left to grip—and the hot air that rushed inward through her gaping entrance—was such an alien sensation that it only held her climax in place longer.

"Hii…… iih…… haahh!!"

Splurt…! Splsh!

The flesh of her inner thighs shivered, and her sock-wrapped toes scraped helplessly at the air.

Her small toes curled up one by one,

went slack again,

then curled tight once more.

Once.

Twice.

Three times.

The climax dragged out of her from behind came wave upon wave, crashing back without ever cresting downhill.

Her small body hung from the tentacle, twisting weakly in search of an escape.

Swept up in the raging torrent of her orgasm, Mio shook her head desperately.

Her small, delicate frame could only be swept along by the flood of climax; it no longer had even the strength to steer itself.

And so, after one great tsunami of climax had finally passed—

Her 157cm body hung limply from the tentacle, trembling in fine shivers.

"P-please, stop nowww..."

The place behind her where the tentacle had been coming and going until moments ago kept twitching pitifully, as if it still hadn't registered that the stimulation had ended.

The magical girl hung there, limp and helpless. A punishment far too cruel for a rookie's first failed mission.

Between ragged breaths, Mio was still begging for it to stop.

‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠

On the slope of a mountain where the sun was beginning to slant low, the mouth of an old abandoned mine yawned open. The very mine Mio and Hinata had entered.

Because it was an easy F-rank rift, the two of them had been sent in alone—and now, in front of that same place, makeshift barricade lines had been strung up layer upon layer, and a fleet of vehicles lined the mountain road.

Wheeeeeeeng—

The hum of generators rolled low across the mountainside. Three or four hastily erected light towers flooded the mine's interior with harsh white light.

"Power's up on line three!"

"Run the comm relays all the way into the tunnel. We lose signal, we're dead."

Field agents in hazmat suits bustled in and out of the tunnel mouth, gear strapped to their backs. Cables snaked along the ground like serpents, and boots trampled over them in endless succession. The old wooden support beams on the walls were so rotted they looked ready to crumble at a touch, and somewhere in the ceiling, water still dripped steadily into a puddle below.

Tap…… tap……

"Ugh, it's seriously humid in here."

A woman striding along the rusted rails scratched at the back of her neck, scowling.

"My hair's gonna frizz out completely. Do we get hazard pay for this?"

"No."

"Tch. Stingy bastards."

No frills, no ribbons—just a sleek black functional suit. The equipment belts fixed at her waist and thigh swayed sharply in time with her stride. When her 174cm willowy silhouette turned her back to the light towers' glow, the clean line of her nape showed beneath her short black bob.

Kurosawa Reika, sixth-year veteran of the Japanese Branch Special Rescue Team.

"Reika. Quit whining and get over here to prep."

"Yeees, ma'am."

"Equipment check?"

"Done it twice~ yes yes~ want a third?"

"…"

The woman at the head of the column let out a short sigh. An eleventh-year veteran leading the rescue team. Her frame was a head smaller than ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠Reika's, but her mere posture made it abundantly clear who held the authority here.

"Everyone, gather up."

At that voice, the scattered team members assembled one ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠by one. Five women, hastily deployed for a dedicated missing-persons search.

"Situation briefing, again."

Saki raised her terminal.

"Amamiya Mio, Sakura Team 3. Three months of service. Approximately six hours ago, she was dragged into the rift by an unclassified entity."

"A rookie, huh."

Reika pursed her lips as if about to whistle.

"Three months in, she'd still be clumsy just handling her own power. It was her first mission, wasn't it."

"Our objective is search and rescue. Extermination of the entity is secondary."

"Yes."

"Yes!"

In lieu of answering, Reika gave the black wire coiled at her wrist a sharp tug, checking its tension.

"Reika."

"Yes."

"Answer properly."

"Yeeees—."

The junior standing beside her couldn't hold it in and burst out laughing, only to clamp her mouth shut the instant she caught Saki's gaze.

"Prepare forced breach."

Five wells of magical energy swelled up at once. Toward the rift's rim—its edges cracked like shattered glass—five streams of power converged on a single point.

"Everyone, brace for the shock."

"Three."

"Two."

"One—"

KWAAANG!

Cracckle-creak—!!

The entire tunnel shuddered. Dirt rained down from the ceiling, and one rotted support beam snapped clean under the vibration and dropped.

The rift's boundary split apart like something screaming—like a crowbar jammed into the seam of a door and heaved. The gap pried violently open spewed out a gout of dark-red miasma and widened until several people could pass through abreast.

"Breach confirmed!"

"Moving in!"

Five shadows plunged inside, one after another.

And then—

The instant the air beyond the rift filled her lungs, Reika's step stuttered, halting for exactly half a beat.

Fishy. Damp. Like rotting water, and yet strangely, cloyingly sweet.

Her whole body flinched for an instant. Her shoulders seized up a full span, and the fingers gripping her wire curled in without her permission.

But almost immediately, as if nothing had happened—

"…Ughhk."

Reika rubbed her nose with the back of her hand.

"This smell, seriously, no matter how many times I run into it, I never get used to it."

"Getting used to it would be the bigger problem."

"Fair."

With that brief exchange, Reika stepped forward as though nothing were wrong.

It was a cavern.

Though whether the walls could still be called stone, she couldn't quite say.

Every wall—every single one—was blanketed in dark-red tentacles. From the ceiling, the floor, every direction at once, thick and thin tentacles writhed in an entangled, glistening morass, slowly undulating like the innards of some living beast. Each step into the pooled mucus on the floor sent a wet, squelching sound rising from underfoot.

"…Tentacle-type."

Someone murmured it low. One of them grimaced openly. Another couldn't bring herself to open her mouth any further and simply pressed her lips tight.

Anyone who'd spent years in this line of work knew, without needing to be told, exactly what condition magical girls dragged off by tentacle-type entities were usually found in.

Saki drove the point home, short and sharp.

"Until confirmed otherwise, they're all survivors."

"Yes, ma'am."

Reika kept herself out of that conversation.

"Hold formation and advance. Reika, rear guard, position three."

"Yes."

The moment the five of them fell into column and moved deeper—

Shhhrrrrshhh—!

A bundle of tentacles came lashing out of the walls all at once.

"Here they come!"

Weapons rose on reflex. Cut, deflect, burn—

And—

Fantastically easily, the tentacles came apart.

"…Huh?"

The lead magical girl blinked.

The tentacle she'd just severed had split like taffy under a blow carrying less than half its usual force, dropping to the floor. In the remains—still wriggling, then quickly going still—there wasn't the faintest trace of anything that could be called a threat.

A second bundle came surging in, but the result was the same.

Thwack. Shlshsh.

Everything they touched collapsed.

Within a handful of exchanges, every tentacle in that section of the cavern had gone quiet.

"…Combat strength really is F-rank."

"All scale, no punch. Its strength matches its rating, sure."

The tension visibly drained from the team's shoulders.

"It's just the environment that's unusual, not the power. Honestly, this feels less like a misjudged rating and more like a misclassified form."

"Whatever, good enough for me."

Reika gave the remains at her feet a careless kick and shrugged.

"Some stray mutt on the street would put up more of a scare than this thing."

"…Excuse me?"

The junior beside her turned around, dumbfounded.

"What? I'm right, aren't I? Something this docile, you could take one home and raise it. Give it a name and everything. How about 'Squishy'?"

"Why 'Squishy'?!"

"It's a tentacle, so Squishy. You've got zero imagination."

"Kurosawa."

"Yes."

Reika raised her hand with a grin.

But the words kept flowing without pause. The moment one quip ended, the next followed—then the next, before that one had even finished. Leaving no gaps. So that nothing could wedge its way in through the cracks.

And for all her grumbling, Reika's feet had already returned, precisely, to the second position in the column.

Her mouth never stopped—but her footing never faltered once.

Stepping through the wet mucus, five sets of footsteps pressed deeper into the cavern.