“Ang! Ang! Ang!”

I often stayed in my room whenever these moaning sounds reached my ears.

“Harder! Faster! Deeper!”

Those words weren’t directed at me… but the customer.

“Yessshhh. Ahhhh….”

Every night.

Every morning.

I heard the sounds of mornings and groans. That was my punishment for deciding to come to the Demon Settlement on my own.

It was a kind of hell, especially for a virgin like me. But, that didn’t last long.

“Why don’t I try it on you, my Original Magic?” Karlia, the Succubus spoke on a fateful day.

It had been a few months since I was being held captive by this Crimson Demon.

Though I wasn’t exactly treated as a prisoner, more like a housekeeper, it was a strict rule that I couldn’t leave her abode.

As such, it was clear that I was a captive.

“W-w-what??!” I bellowed in surprise.

It was a natural reaction for a virgin like myself.

“Come on, aren’t you curious? Whether it’ll work for you or not.”

I had to agree with her words.

Karlia had been teaching me about Magic and Miasma for the few months I had been with her.

She initially didn’t say anything, but after I asked, the Succubus answered my questions.

It seemed she was also kind of lonely, due to the kind of life she lived, so Karlia always enjoyed my company.

As we talked about Demons and Miasma–along with their connection to Miasma–I was making theories and also raiding various hypotheses.

Surely, the copulation between a human and a Succubus had to have been one of the things I wondered about.

“You’re inept, so Miasma doesn’t have any negative effect on you. It’s just foreign energy–same as Mana. At least, strictly speaking.”

I knew what she meant by that.

It wasn’t as though Miasma wasn’t deadly to me.

Since my Soul still considered Miasma as a foreign entity, it would be dangerous to expose such a core of myself to such energy.

Still, my physical body wasn’t exactly rejecting the energy since I had no Mana Particles.

So, it stood to test, that Inept individuals could actually have relations with Demons.

My stay with Karlia proved that.

The major issue was… just how far could we go?

“W-we’re not sure if your Magic will work on me. I’m Inept, remember? There’s nothing to raise there…” I used my crafty words to escape the frightening reality before me.

“Is that so?” She grinned.

It wasn’t that I was scared of Karlia, neither was she a non-ideal choice.

The Crimson Succubus was an extreme beauty. Her body was captivating beyond description.

Besides her red skin, the retractable wings behind her, and the tail that dangled above her buttocks, Karlia could pass for the most attractive human I could ever see.

He had a foxy grin and a devilish charm to her, so I doubted any man would find her repulsive.

However…

‘Emilia! I have Emilia!’

… I didn’t want to lose my chastity to another woman besides the one I loved.

“I see. It’s a shame, then.”

And so, I refused her offer.

**********************

The hell continued after that.

Day after day.

Night after night.

Sexual tension was building up within me, but I fought it with every ounce of my being. The fading image of Emilia kept my will from breaking.

Ever since that day, Karlia never mentioned the topic of the both of us having sex again, but I couldn’t stop imagining it.

Still, I endured with all my might. I really did!

That was probably why I was able to last eight months without doing anything.

But, every man had a breaking point.

I was no exception.

“K-Karlia… remember that one conversation we had…?”

My crotch was bulging, and my body fidgeted as I spoke to her.

“Hm? What conversation? We’ve had many.”

It was obvious that she was teasing me.

Karlia was an expert at reading people, especially simple-minded men. When it came to the topic of arousal, she could sense it a mile away.

The Succubus knew what I wanted, yet she wanted me to spill it myself.

“I-it’s for research… I want to know the results…”

It wasn’t completely a lie. Magic Research was important, and it would really help with the work I was doing in compiling all the information I could concerning the Demons.

But, who was I kidding?

I also wanted to have a taste… of Karlia’s enthralling body.

“I see. This guy, you just can’t be honest, can you?”

I gulped and steeled my resolve–the resolve of a virgin.

“I’m also curious… as to what kind of power I’ll obtain after having SEX with you…”

And so, Karlia drew close to my trembling body.

I gulped several times.

The image of Emilia was banished from my guilty mind.

I had replayed the scenario in my head over and over again. My thoughts were an immoral wasteland that someone as pure as Emilia couldn’t dwell in.

“Very well.” Karlia grinned, pulling down my pants in a flash.

It revealed my bulging appendage underneath.

“Oh? Is this the usual size of humans?”

“I-I’m not sure…”

“Hmm. It’s quite small…”

“Ngh!” I definitely felt that one.

“Looks like I’ll have to restructure my body a bit.” Karlia smiled, touching my throbbing lump of meat with her bare hands.

“A-ahh…!”

Succubuses had a special trait that allowed them to alter the shape of their bodies to a limited extent.

It wasn’t exactly shapeshifting.

Their technique was more akin to muscle augmentation–involving enlargement or retraction.

That way, they were able to take in huge tools, as well as smaller sizes.

It only took a moment for Karlia to adjust her body to the size of my equipment, and so she rubbed it even more.

“A-ang…!”

“I see. I see. Alright then. Looks like we’re good to go.”

At this point, I was aroused beyond any form of reason.

“Come, now, Lewis. Let’s do research with our bodies!”

Indeed! I wholeheartedly agreed.

And so, I lunged at Karlia and we both crashed into the bed.

Her body was soft and completely captivating.

She was gentle, guiding me every step of the way.

It was difficult at first. The hole I was plunging into was tight–too tight to casually insert myself into.

And so, utilizing every ounce of force in my body… I went into the forbidden cave.

“Aaaaaahhhhhhh….”

Once I did, I realized two things.

One, this research was the best I had ever engaged in.

Two, my hell had suddenly turned into absolute bliss.

And so, I never wanted to come out of the cave.