Chapter 29

Chapter 29

I Became a Prisoner Trainer in the Dungeon.

Episode 29: From Now On, I Will Train You. (3).

This world was a fantasy world.

There were tentacle beasts, goblins that gang-raped humans until they got bored and killed them, and succubi that sucked out human essence.

I had seen some of the training methods I thought of actually exist.

However, there were often cases where they did not.

For example, like now.

“Did the slime come?”

“Yes.”

The slime that Lilith brought was a creature with a pink hue, slightly larger than a basketball.

“But what are you planning to do with the slime now…?”

“Give me the slime’s hand.”

I grabbed the slime’s hand.

The slime, lacking intelligence, recognized me as a human and tried to melt me with its mucus in resistance, but stopped when it saw the seal of the Vampire Legion engraved on my face.

“You will now enter this woman’s stomach. Understand?”

“……What?”

Casey asked.

“Wai-, what?”

“Keep your body intact as much as possible. Consume any liquid that comes out from inside. Then burrow inside as much as you can until you fill her up completely. Can you do it?”

“Wait!! Wh-, what are you doing!!”

Casey started screaming.

“You crazy bastard!!”

“Go. Hurry.”

“No, no!!”

“Yes.”

When I pushed the slime forward, it clung to Casey’s ankle as commanded and began to crawl up.

“Get off! Ah, aaah!!”

The clinking sound of chains echoed loudly.

Casey writhed to shake off the slime, but it ascended her leg like a snail, unaffected by the shaking.

“Good, good. Keep going up like that. You know where to enter, right? Don’t go into the back passage or the urethra.”

I extended my finger downward, spreading the labial cleft.

“This way.”

Click, click.

The slime poked its head into the succubus’s vagina.

“Huh?!”

It must be a sensation she had never felt before.

Even though other things might frequently enter her vagina instead of a penis, the very act of a slime inserting its head inside rather than just covering the entrance would be a first.

Click, click.

The slime kept going inside.

It seems a bit of a struggle to go upward, but the slime followed the given command, striving to burrow into Casey with all its might.

Click.

She tried to crush the slime by squeezing her thighs together.

It looked like the slime would burst momentarily, like a rubber balloon expanding under pressure.

“Secretary.”

“Yes.”

“Can you spread her legs wide? Or better yet, can you suspend them in the air?”

“As you instruct.”

Lilith snapped her fingers, and the magical circle holding Casey’s legs moved toward the air.

Clank.

In an instant, Casey was positioned with her arms and legs stretched towards the sky.

Moreover, thanks to Lilith’s fine-tuning, Casey’s legs were spread wide into a V-shape.

“This should make it easier to enter.”

Click.

The slime, barely clinging to her thighs, quickly covered Casey’s vaginal mound.

Perhaps out of anger for almost being crushed by her thighs, the slime forced itself deeper into Casey’s vagina.

“No, not inside…!”

“Yes.”

I grabbed the slime with both hands and pushed from behind.

The slime awkwardly twisted its body in resistance to my hands, but the more it twisted, the deeper it had to go.

Whine.

The slime whimpered from inside.

As if it had already filled the vaginal space, it kept trying to pop out.

“No, no.”

I supported the slime with one hand while pressing firmly against Casey’s lower abdomen with the other.

“There’s still more space inside. Search well.”

“Ah, aah…!”

Casey’s eyes, looking up at me, were filled with shock.

“Wait, wait…! Just wait, that place is…!”

“Did you find it?”

At the moment the slime twisted deep inside.

“!!!!”

Casey threw her head back, writhing.

Her hands, raised to the sky, clenched as if grabbing something, and her waist arched upwards.

Gulp, gulp, gulp.

The slime twisted its body.

With each burrow, the visible part of the slime outside decreased, and its body began to shrink.

The slime visible from outside diminished.

Even if it was a narrow container, if there was space to squeeze into, the slime could go inside without bursting.

A place where nothing should enter.

A place where only male semen should go.

“There. Can’t you feel your new home?”

The slime began to burrow deeper into the uterus.

“Ugh, uh, ugh…!!”

Casey writhed in agony.

More accurately, she was twisting her body in fear of the bizarre sensation of a liquid monster penetrating her body.

“Secretary.”

“…….”

“Secretary?”

“Ah, yes.”

Lilith, before she knew it, had forgotten to take notes and was staring blankly at Casey.

“Can you induce pleasure from pain now?”

“That…”

“Ah, should we have done this before the slime entered?”

“……If the slime in the uterus interferes with sexual magic, it might be a new discovery in sexual magic.”

Lilith casted a spell by touching Casey’s hand.

Whirring.

Thankfully, the vulva on Casey’s abdomen began to twinkle.

It was a sign that the sexual magic had been activated, and-

“Ugh!!”

Casey ejaculated her fluids.

Hot liquid flowed down between the mound covered like underwear by the slime.

“Master Trainer. Succubus fluids contain potent aphrodisiac and narcotic components. Be cautious.”

“Ah, I see.”

I stepped aside in response to Lilith’s warning.

“Does it work on slimes too?”

“That…”

Tremble.

The slime shook its body.

“It would be correct to say it absorbs them.”

“I see.”

The slime, which had already been absorbing vaginal fluids while burrowing inside, could be confused by the sudden ejaculation, but that fluid also contained magical power.

Slurp.

The slime immediately began to suck up Casey’s fluids.

It seemed to be treating it like a sweet drink, sucking it up eagerly.

“Umm, ugh…!”

Casey gritted her teeth to suppress her moans.

Her expression was not one of trying not to submit but rather one of fear that if she couldn’t endure this, her very existence might be destroyed.

Click, click.

The vulva swelled.

It felt like the slime was burrowing through the vagina into the uterus, indicating how far it had gone.

“I’m not well-versed in demons, but I know a few things about slimes.”

I moved closer to Casey’s body and placed my thumbs on her lower abdomen.

“Slimes are creatures made of mana. They break down whatever they absorb into the liquid within their bodies, absorbing the mana and splitting the rest into more slime.”

Slime reproduction was somewhat akin to somatic cell division.

“While vaginal fluids are mana-rich enough to absorb, there’s definitely more potent mana here, right? Huh?”

“Aaah?!”

Press.

I pressed my thumb slightly upward from her lower abdomen.

I felt around with my thumbs where the fallopian tubes extend from the uterus, rubbing to guide the slime in that direction.

“What would happen if the slime reaches this far?”

“Stop…! Stop it…!”

Casey, even while tears and drool flowed, pleaded by pulling her head back.

“Not there…!!”

Casey knew with her own body what was happening in her abdomen.

There’s only one place the slime could reach, extending from both sides of the uterus.

“Why? What do you think is at the end of this?”

“There, there…!”

“Don’t worry. Even if it hurts, only pleasure will burst out. But there’s no need to go that deep.”

I massaged Casey’s lower abdomen from above, signaling the slime with vibrations.

“Settle in the uterus. And feed on the fluids that come out from there.”

Even succubi ovulated from the ovaries connected to the uterus.

Given that there was the potential for life anytime with just male seed, there must be a tremendous amount of mana there.

“And when you feel you’ve grown enough…”

I pushed down on her abdomen as if squeezing it out.

“Expel your offspring, slime.”

“Ah, ah…”

“It’s okay, it’s okay. No need to be so scared. You just need to confirm.”

I traced the uterus-shaped pattern etched on Casey’s vulva with my thumb.

“Anyway, you’re not going to tell me who was behind the attempt to kill me, right? If that’s the case, it would be much better for you to keep producing energy for our Vampire Legion.”

“No-”

“Shh.”

I roughly covered Casey’s mouth with my hand.

“Wouldn’t it be better for a spy who tried to poison someone to become a factory producing soldiers for the Vampire Legion while still being loyal?”

“Ah, ah…”

“Or do you want to reveal the mastermind? Who ordered the poisoning? Confess and find the light.”

I met Casey’s gaze and gave a broad smile.

“Do you want to reveal the truth with one slime birth show and end it, or do you want to become a slime-producing factory forever?”