Le Fay's idea was, to put it kindly, far too naïve.
Sure, she had acquired the Third Magic.
But what she possessed was nothing more than infinite mana—a fragment, a mere shadow.
None of the other abilities were included. With that alone, how could she possibly expect the Einzbern homunculi to acknowledge her?
Especially when the complete Third Magic—Izumi himself—was standing right there.
When Izumi pointed this out, Le Fay stuck out her tiny pink tongue.
"It was just a little experiment… that's all."
Then she tilted her head, curiosity bubbling in her eyes.
"But Izumi-sama, what are you planning to do by having Ahad bring out the relic?
Didn't you already dig out the Grail?
What do you need that thing for now?"
Izumi chuckled, amusement playing on his lips.
"The relic the Einzbern family prepared isn't something ordinary."
"It's actually a catalyst for summoning King Arthur~."
At that, Izumi glanced at her with a strangely teasing expression.
Le Fay froze.
"E–Ehh!? A catalyst to summon King Arthur!?"
"You mean my ancestor in this world!?"
"Seriously!?"
"Is it a holy sword or something!?"
Her excitement burst forth instantly.
Of course—she was a Pendragon.
Anything related to this world's King Arthur was bound to fascinate her.
Now that Izumi had brought it up, she was practically vibrating with curiosity.
Izumi didn't answer directly. Instead, he gave her a playful smile.
"You'll understand soon enough."
"It's a very nice item."
He was, in truth, incredibly interested in Avalon as well.
It was useless for his own body—he was already far beyond needing such protection.
But trading it to the system later for some high-grade rewards?
That was definitely worth anticipating.
He glanced at the few items currently sitting inside his system inventory and smirked.
Tonight, he would throw all of them in and see what the system spat back out.
The mere thought made his mood brighten.
Le Fay watched him act mysterious and grew even more curious, her eyes shining like a cat stalking a secret.
She wasn't the only one—Tōsaka Rin was leaning forward too, unable to hide her interest.
A relic of the legendary King Arthur—who wouldn't be curious?
Meanwhile, Matō Sakura simply ate her snacks quietly in the corner.
Ahad did not keep them waiting for long.
Before much time had passed, he returned, carrying a long rectangular box with both hands.
The moment Ahad stepped inside, Le Fay felt something stir within her.
A pulse.
A throb of excitement.
A sensation almost identical to when she first encountered a holy sword.
A resonance?
Her gaze snapped to the box in Ahad's hands, her heart quickening.
What kind of relic could cause this…?
Ahad placed the long box before Izumi with utmost reverence.
"Izumi-sama, this is the relic we have secured."
Izumi nodded, then casually opened the box.
The lid lifted—
and a breathtakingly ornate sheath came into view.
The golden scabbard gleamed like a piece of art carved by the gods themselves.
Even after centuries, its patterns remained impossibly vivid.
Izumi lifted it gently and explained to Le Fay:
"This is Avalon. I'm sure you've heard of the name."
"The Sheath of the Fairy Realm. A Noble Phantasm belonging to this world's King Arthur."
The moment she heard the name, Le Fay instantly understood.
Her breath hitched.
Her eyes widened.
"It really is Avalon!
Even if this isn't my world's version, the aura is unmistakable!"
Her entire body trembled with excitement.
Never had she imagined encountering her ancestor's artifact in another world.
Izumi smiled and continued:
"It's more than just a relic."
"It's also a Noble Phantasm."
"This sheath grants extraordinary regenerative power and halts the aging of its bearer."
"And when its True Name is released, it becomes an absolute defense.
Within its domain, no attack—no matter how powerful—can ever reach the bearer."
"In short, a top-class Noble Phantasm."
As he explained, Izumi simultaneously activated his analysis ability, deciphering every detail of the scabbard.
He fully intended to toss the real Avalon into the system later.
But before that, he recorded it with Projection—so he could reproduce it anytime as a defensive option.
After hearing his explanation, Le Fay and the others were left speechless.
Especially Tōsaka Rin.
"N–No way… this is actually a Noble Phantasm…?"
"A real, existing Noble Phantasm!?"
"You're not joking, right!?"
Izumi gave her a flat look.
"What would I gain from lying?"
"And yes, it's EX-rank."
"Anyway, it's mine now. Nothing to do with you."
After saying that, he stored Avalon away without hesitation.
Tonight, it would become system fodder.
Le Fay let out a small sigh, disappointment washing over her.
"Aww… I wanted to admire it a little longer…"
She pouted, cheeks puffed with grievance.
She was King Arthur's descendant, after all!
He could at least let her touch it once, right!?
Seeing her sulk, Izumi chuckled softly.
He reached out, ruffled her hair, then activated Projection and materialized a perfect replica of Avalon.
He pressed it into her hands.
"Here. Take this."
"I've already analyzed the original. I can make as many as I want now."
Le Fay stared at the replica and rolled her eyes dramatically.
"Izumi-sama, your counterfeiting skills keep getting scarier."
"You made this in seconds…"
She couldn't help laughing helplessly.
She remembered vividly how Izumi had fooled her—and her brother—with piles of perfectly crafted fakes when they first met.
But still, even if fake, she accepted it happily.
Another King Arthur-related collectible in her private stash.
Bliss!
She had already studied the holy lance he projected earlier.
Even though she couldn't understand anything about it, she still enjoyed the research.
Now she had a scabbard too.
She could compare this world's Arthurian artifacts with those from her own.
After securing her precious new treasure, Izumi headed straight for the Einzbern library.
The place was filled with ancient magical tomes—truly a treasure trove of knowledge.
Naturally, Le Fay followed him.
Magic always piqued her curiosity.
Tōsaka Rin came along as well—she was specifically hunting for reinforcement magecraft books.
She wanted to strengthen her physical body even further.
After all, she wasn't a typical magus.
She was the kind who could transform into a muscle-bound battle maiden and fight in hand-to-hand combat.
The entire day passed with the group reading in the Einzbern library.
Izumi also took the opportunity to teach Sakura a few basic spells.
Finally, when night fell—
Izumi opened his system, ready to throw all the relics and spoils inside.