Mash-up Anime World: Creating the SCP Foundation to Contain Anomalies

"She… she's still completely naked, Haruto-kun, you can't go in!"

Iino quickly explained.

Haruto thought for a moment and rummaged through his backpack.

When he came here, Haruto had already considered that there were normal people present, and he would need to hide certain actions.

Using the cover of the backpack, Haruto retrieved some clothes from the Kamui space.

These clothes were vastly different in material compared to ordinary clothing.

Normal silk, cotton, or synthetic fibers couldn't be worn by the succubus girl — they would cause pressure ulcers on her skin.

However, the clothes Haruto brought were made either from special synthetic fibers or materials from fantasy worlds.

Seeing Haruto take out the clothes, Iino hesitated and said,

"She… it seems she can't wear clothes. Wearing them causes harm to her body."

Upon hearing this, Kaguya and Chika were both shocked.

There actually exists a girl in this world who can't wear clothes?

At this point, Kaguya also deduced that this girl must be some sort of anomaly.

Especially her characteristics, they reminded Kaguya of Tomie, and a chill ran down her spine.

But Haruto shook his head.

"These clothes are made of special materials, not the kind sold on the market. Try bringing these in and see."

Iino looked unsure, but ultimately took the clothes and went inside.

Moments later, she returned, looking a little strange.

Seeing her expression, Haruto frowned slightly.

"Even those clothes don't work?"

If so, this was going to be troublesome.

The clothes Haruto had brought essentially represented every material that the Foundation had researched as wearable.

If even these didn't work, then the succubus girl might be forced to remain naked permanently.

But Iino shook her head.

"One of them worked… it's just…"

The discipline committee member seemed hesitant to say more.

Haruto glanced at the clothes still in Miko's hand and quickly understood.

One item was missing, a piece made from fantasy fiber.

It was a special silk he obtained from the Re:Zero world, known for being weightless and softer than feathers.

It was considered a highly luxurious material in that world, typically used as inner lining for magic cloaks.

For instance, Emilia's cloak used it as an inner layer.

But there was a problem.

This material was only used as lining for a reason.

Not because it was too expensive to make a full outfit — but because…

No matter how many layers you added, it always appeared as a sheer, veil-like fabric.

Wearing only this material gave off the effect of being only half-covered in a hazy, semi-transparent veil.

While it technically hid the body, it also boosted attack speed and crit rate...

Haruto cleared his throat awkwardly and said with a helpless tone,

"We have to solve the issue somehow, right?"

Iino was clearly flustered. Just thinking about the girl wearing that gauzy veil turned her face bright red.

But Haruto was right, they couldn't let things drag on like this. They had to solve the problem.

The group moved toward the artificial hill.

Iino also took away the memory-loss crowbar from Haruto's hand.

She figured that if he lost control later, and wasn't armed, the three girls might be able to hold him back.

Haruto walked inside and finally saw the succubus girl.

The blonde girl curled up in a corner, wearing only a thin white veil. Her pale-pink skin could faintly be seen through the fabric.

Upon seeing them enter, she gave them a gentle smile.

Despite being trapped in an unfamiliar place, the girl was still trying to show kindness to others.

Seeing this, Haruto relaxed a little.

It seemed she was an anomaly that could be communicated with—one who didn't attack others on sight. However, it was also clear that the girl was extremely weak, her face was ghostly pale.

Haruto's expression turned strange as a thought came to him.

Thankfully, this was Shuchiin Academy.

Shuchiin's school uniforms were made with high-quality materials — all-natural, no low-grade chemical fibers.

Otherwise, the synthetic fiber particles floating in the air would've triggered an asthma attack in the succubus girl.

But given how weak she was right now…

If clothing and materials were ruled out, then the only possible cause he could think of…

Was food.

The three girls had also noticed how frail the succubus looked.

Iino was getting anxious, but she couldn't figure out the reason.

Suddenly, Chika said,

"Could she be hungry? She's so thin, maybe she hasn't been eating properly…"

Chika's words were random, but actually on the right track.

Iino pulled out some chocolates from her pocket.

The succubus girl took them, held them in her hands, but didn't seem inclined to eat them.

Haruto internally sighed.

The succubus girl could eat normal food, but couldn't extract any nutrients from it.

So, every week she had to consume one milliliter of…

Seeing the girl not eat, Iino assumed she just didn't like chocolate.

So she looked for other snacks.

But Haruto sighed and stopped her.

"I've seen similar conditions before. This child probably has a special constitution — she can't digest regular food."

Hearing this, Iino immediately panicked.

"What should we do then? Should we take her to the hospital for IV fluids and glucose?"

Haruto shook his head numbly and reached into his backpack.

Moments later, he pulled out a small black bottle.

He handed it to the succubus girl.

This time, the succubus girl immediately opened it and drank it down.

Her condition visibly improved almost instantly—her complexion no longer pale. Her skin became rosy, and her movements grew noticeably stronger.

Seeing this, all three girls breathed a sigh of relief.

Chika, however, remained curious.

"That tiny amount was enough? Haruto-kun, you're so stingy! Got any more? Got any more!?"

The corner of Haruto's mouth twitched—he could barely hold it in.

That dose of deoxyribonucleic substance had been synthesized by him on the spot.

Thanks to his body being modified by the Blacklight virus, he could basically synthesize any type of cell at will.

And he could shed those cells from his body freely.

To call that thing "stingy" was… well, pretty hard to mentally endure.

Not knowing what was in the bottle was fine.

But if someone did know what it was—like Haruto did—then hearing Chika say that would be way too suggestive.

He flicked her on the forehead in response.

Haruto's expression was almost comically awkward.

Chika held her forehead, eyes brimming with tears as she crouched down in mock defense, muttering under her breath,

"What the heck, I just wanted to try it too. Is it some kind of rare elixir or something? Haruto-kun, you meanie!"

Haruto: "!!!"

Thankfully, the conversation didn't continue down that track.

Once the succubus girl had recovered, Haruto began trying to communicate with her.

Unfortunately, the succubus girl was like a blank slate.

She knew nothing about herself, or even the world around her.

On the bright side, she showed an extremely high level of obedience and didn't resist containment procedures.

In fact, she almost seemed eager to be taken into care.

"Kaguya-san, why don't we have the Shinomiya family take her in for protection?" Haruto suggested.

Kaguya immediately understood and took out her phone to call Ai Hayasaka.

Once the call connected, Kaguya quickly explained the situation.

Having worked together for years, the master and servant were already in perfect sync. Hayasaka instantly understood what Kaguya meant.

At that point, Haruto added,

"Also, this girl's body is quite special—she can't come into contact with cheap synthetic fiber materials."

"And due to the nature of her clothing, it would be better if a woman came to pick her up—it'll go more smoothly that way."

On the other end of the line, Hayasaka promptly recorded the containment protocols:

No low-quality synthetic fiber clothing is permitted within proximity of the entity.

During containment, no male staff may appear within a 500-meter radius.

Upon entering the containment room, male Foundation staff are strictly forbidden from observing or approaching the entity.

All surveillance equipment and windows in the containment chamber must be fitted with light-blocking filters of at least 50% opacity.

Hayasaka, already highly experienced in Foundation containment operations, quickly compiled this list and reported it to the Foundation site.

Not long after, a team of female Foundation staff dressed in natural silk arrived at Shuchiin Academy.

They brought a fully sealed, lightproof containment capsule, its inner lining made of the same fantasy-fiber material as the succubus girl's current outfit.

Several female staff members led the succubus girl from behind the artificial rock garden and into the capsule, all the while keeping a friendly, conversational tone.

Then, this so-called "Shinomiya Family Foundation team" departed Shuchiin with the containment capsule in tow.

The succubus girl's capsule was completely sealed, equipped with an air purification system to prevent any airborne aerosol infiltration.

Watching the convoy drive away, Iino breathed a sigh of relief and bowed to Haruto and Kaguya.

"Thank you, Haruto-kun, and you too, President Kaguya."

Haruto waved his hands quickly, telling her there was no need.

At that moment, however, Chika still hadn't let go of her curiosity over that little black bottle of "food."

Even Kaguya was intrigued, and she sidled up to Hayasaka.

Just earlier, when the succubus girl drank it, Kaguya had caught a glimpse of the liquid from her angle.

But she didn't recognize what it was.

So, Kaguya described it in detail to Hayasaka, hoping to get an answer.