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

After spending quite some time, Haruto finally managed to explain the situation to the two ghostly girls.

However, judging from their expressions, they didn't seem to believe him.

Ram and Rem huddled together, still warily watching Haruto.

Fortunately, it was already dusk, and there were no passersby in this small park. Otherwise, if someone saw this scene, they would probably call the police immediately.

"Ram, Ram, the scary big brother wants to kidnap us and eat us."

"Rem, Rem, the scary big brother wants to trick us and do something ox to us."

The two little ones whispered warily to each other.

Haruto's mouth twitched.

But at that moment, Ram suddenly swayed unsteadily. Rem quickly reached out to support her sister. However, Ram soon lost consciousness and collapsed completely.

Rem, who was already in a weakened state due to her dissipated horn, struggled to bear her sister's weight.

The two of them wobbled, about to fall to the ground.

Haruto quickly reached out and caught the two girls.

"Sister!"

Rem anxiously checked Ram's condition.

At this moment, Ram's fair cheeks were flushed, and fine beads of sweat covered her forehead.

As soon as Rem placed her hand on her sister's cheek, she felt an intense heat.

Ram's expression was one of extreme pain, as if she were a drowning person desperately struggling to stay afloat.

"Why is Sister like this… Her horn… Sister doesn't have her horn anymore, she's going to die!"

Rem suddenly realized the cause of Ram's condition, and her entire being began to break down.

Ram and Rem's race was the extremely rare "Oni" tribe in the Re:Zero world.

Individuals of this race were born with two horns, which remained hidden most of the time but emerged during combat.

A horn was the source of an Oni's strength, the key organ for gathering and utilizing the magical essence in the air.

Ram and Rem, as twin sisters, were different from other Oni from birth.

Each of them had only one horn.

It was as if they were twin beings sharing a single pair of horns.

Because of this, the two had suffered much discrimination within their tribe.

It wasn't until Ram demonstrated an extraordinary level of talent and power that the murmurs and criticism finally subsided.

However, during the attack on the Oni village by the Witch Cult, Ram lost her horn while protecting Rem in battle.

Oni were different from humans.

Without the organ that gathered magical essence—without their horn—an Oni could not survive.

For an Oni, consuming mana was essential to their continued existence.

And now, Ram's mana reserves were nearly depleted. Yet she no longer had a horn to absorb more mana. And without mana, oni cannot survive.

Now, Ram's mana reserves were critically low. Without an immediate supply of mana, she might die.

"Please, save my sister! As long as you save her, I'll do anything!"

In her despair, Rem clung to Haruto as if he were the last lifeline she could grasp.

She didn't know who this young man was.

But Rem could faintly sense the vast ocean of mana within him. That power far exceeded even her sister's peak state.

Hearing Rem's plea, Haruto suddenly felt a little awkward.

Uh... replenishing Ram's mana?

If this were an adult Ram, Haruto would have no hesitation in offering his "assistance." But right now, Ram was still in her childhood phase.

Wouldn't that be a bit... problematic?

Seeing Haruto hesitate, Rem immediately tried to kneel. Haruto quickly reached out and stopped her.

Shaking off the strange thoughts in his mind, he refocused.

From his Kamui Space, he retrieved a capsule.

(T/N: I've seen a lot of fics to know where this is going...)

He placed it into Ram's mouth. However, since Ram was deeply unconscious, she couldn't swallow it.

Feeling troubled, Haruto turned his head and met Rem's teary, pleading gaze.

With no other choice, Haruto retrieved a bottle of water from Kamui Space, took some into his mouth, and passed it to Ram.

At last, Ram swallowed the capsule.

The moment it went down, her body reacted. Tiny specks of light gathered at her forehead.

A violent gust of wind swept through the area.

The light slowly took the form of a horn.

The wind swirled into a small tornado, howling throughout the small park.

Rem stared in shock.

Then, the specks of light shattered.

A delicate horn, resembling bone yet as smooth as jade, appeared on Ram's forehead.

Rem was overjoyed.

"Big sis's horn!"

She had never heard of any method that could regenerate a severed oni horn.

Haruto casually waved his hand, dispersing the raging winds.

Ram's magic affinity was wind, and her talent was so strong that she had unintentionally caused this storm.

In the original storyline, Ram had always seemed weak due to losing her horn.

But now that this flaw had been repaired, her future strength would likely surpass imagination. After all, childhood Ram with a horn was already among the top ten fighters in Re:Zero's world.

As for how Haruto restored her horn...

That capsule was SCP-500, the Panacea.

An anomalous drug that could cure all diseases and heal any physical defects.

The SCP Foundation had previously tested it on beings from fictional worlds, confirming that it could restore non-human organs.

As long as something was a physical injury or defect, SCP-500 could heal it.

So naturally, Ram's missing horn was no exception.

However, despite regaining her horn, Ram remained unconscious. Her horn had also retracted again, and though her expression no longer showed pain, she still had not awakened.

Rem looked at Haruto in confusion.

Haruto sighed in frustration.

The Main World was not like the Re:Zero World.

While mana did exist in the air, it was nowhere near as dense as in Re:Zero's world. Even though Ram had regained her horn, gathering enough mana to function normally...

Would take a very long time.

Realizing this, Haruto suddenly became alert and turned toward Rem. He saw that the worried girl had not even noticed her own condition. Her steps were unsteady, and her body wobbled.

Haruto rubbed his forehead and let out a deep sigh.

The Main World's mana levels weren't sufficient for two oni girls' daily needs.

If they stayed here, they would either have to sleep 20 hours a day and only be active for four—

Or receive mana replenishment...

Haruto explained the situation to Rem. Rem's face instantly turned bright red.

She checked her condition and realized he was right.

"We..."

She wanted to ask if there was a way to return to the Re:Zero World.

But then she remembered what happened before they left. The Witch Cult's attack had destroyed their village.

She and her sister had nowhere to return to.

Besides, a hundred years had passed in that world.

Even if they went back, there was no place left for them.

Looking at Haruto, Rem finally made a decision.

"Big brother, can you take my sister and me in? I can do anything! Cooking, cleaning, weaving, farming—I guarantee we're worth it!"

She eagerly advertised herself.

Because Ram was always so dazzling, Rem had felt inferior all her life.

She always believed that her existence was a burden on Ram. If Ram had two horns, she would have been the greatest genius of their race.

After realizing her own lack of talent, Rem focused on excelling at housework. She had been taking care of Ram since childhood. So by now, her maid skills were maxed out.

Haruto patted her head.

He admired this girl's perseverance.

At the same time, he made a decision.

Mana replenishment? So what if people called him a lolicon!

"I walk a righteous path, and my heart is clear! I fear neither judgment nor slander!"

(Somewhere, an old man from SCP-081 muttered: "I feel the same! I am not alone in this path!")

— Mana replenishment process omitted.

Don't ask. If you ask, it can't be broadcasted!

When Ram finally woke up—

She found herself in an entirely unfamiliar environment.

A strange ceiling.

The room she was in was well-furnished, decorated with expensive and novel items. Compared to the oni village, this was an entirely different world.

Ram felt a bit uneasy.

Luckily, her sister was at her side.

"Rem, Rem."

She gently woke up the sleeping Rem, intending to ask what had happened.

But the moment Rem woke up, she threw herself into Ram's arms.

"Big sis! You're finally awake!"

Ram froze, then embraced Rem in return.

Meanwhile, outside the room—

"Hmph! One maid was enough, and now he brings home two? Haruto is too greedy!"

Tohru pouted in jealousy.

She could barely tolerate the other girls in the household. But now, Haruto had brought back two little maids?

This was stealing her job!