Shirou, who returned from the Fairy Kingdom

Shirou exclaimed in surprise, "So, Extra is also divided into several job classes?"

The mysterious woman nodded earnestly: "Master's quick understanding is a great help."

That's right, Extra is further divided into many types, and in my case it's..."

She paused briefly, then smiled and said, "I'm the kind of person who's good at hiding my real name and abilities."

If Assassins are Servants who hide their physical form, then my class is the type that hides its form through magic.

Not only enemies, but even my own Master cannot obtain information about me.

"oh oh!"

Shirou nodded as if suddenly understanding, and said happily, "No wonder I couldn't see Big Sister's attributes at all! So that's how it is!"

Wow! What a kind and beautiful lady!

Shirou thought happily: It's wonderful that I've summoned such a friendly Servant!

It would be even better if she could tell fewer lies.

The silver-haired beauty continued, "So, like the Assassin and Caster classes, I'm not the type to engage in direct combat."

To be honest, my current fighting strength is simply not up to par, and I apologize for that, hoping you can understand.

Shirou quickly shook his head: "No, no, no. The strong have their own way of fighting, and the weak have their own way of fighting. There is no absolute distinction between strong and weak in war."

Shirou firmly believed that even a weak human could defeat a powerful fairy if the tactics were right.

“Master said something very nice, hehe... Alright, now for the important part.”

The mysterious woman nodded in satisfaction, then cleared her throat in a pretentious manner.

"Although this is my Servant trait, if I hide everything from my Master, I think it will be difficult for me to gain his trust."

You certainly wouldn't want to entrust your back to a suspicious, strange woman, would you?

“Well…” Shirou nodded.

"Therefore, I am here to reveal my real name."

"oh oh!"

Shirou sat upright.

He did not forget that the catalyst he used in the summoning was the "Round Table".

Therefore, the woman in front of you must be related to the Knights of the Round Table.

Which Knight of the Round Table is she? It's so hard to guess!

Although my "Fairy Round Table" is full of stunning beauties like her, there really isn't a magician-type Knight of the Round Table... ah, it seems there is.

The mysterious woman asked, "Does Master know Merlin, the court magician of Camelot?"

Shirou's eyes widened, and he nodded quickly.

Anyone familiar with the Arthurian legend knows Merlin, the Magician of Flowers.

A British court magician, King Arthur's mentor and prophet.

The battle between the red dragon and the white dragon was prophesied even before King Arthur was born.

He was a great mentor who bestowed knowledge and the way of kingship upon King Arthur after his birth.

But shouldn't Merlin be male?

No, since he's a legendary sage, it's not surprising that he wants to change his gender! Let's be magnanimous and forgive his perverted interest!

Shirou's eyes lit up, and he swallowed excitedly: "You, no...you wouldn't happen to be Lord Merlin, would you?"

The mysterious woman proudly puffed out her chest: "I'm his sister."

Shirou: "…………"

The female magician placed her slender fingers on her chest and said smugly:

"That's right, I am the sister of the legendary great magician Merlin."

You can call me Lady Avalon, the Flower Demon from Paradise... Huh! Master's eyes suddenly lost their heat! The highlight disappeared too!

"Whoa, what a blatant temperature difference! How could this be! Master! Wake up, Master!!!"

Shirou hung his head in frustration: How did I end up summoning a Servant from the roadside...?

----------

Volume 1, Chapter 31: Excuse me, can I return this? (3/6)

A silver-haired beauty named Avalon, who called herself Merlin's sister, grabbed the boy's arm and shook him in a panic.

"I'm Merlin's sister! I also come from Paradise, and I'm a genius magician who's just as good as my brother! Be more frank, and act happier, Master!"

Shirou's lips twitched: "No... even if you say that, Merlin is certainly very powerful, but his sister..."

"Just a stranger who has nothing to do with Camelot, right?"

Ms. Avalon bit her lip in grievance, wiping away tears glistening in her eyes: "Sobbing... I can't argue with that..."

"Well, since it's already been summoned, there's nothing we can do about it. We can't just return it."

Shirou stood up and stretched: "Let's get some rest early tonight and discuss our strategy tomorrow. I'll go prepare a guest room for you."

However, the female magician remained seated, not getting up: "Returns are possible."

Shirou was overjoyed: What a stroke of luck!

The silver-haired beauty, contrary to her previous frivolous attitude, said seriously, "I hope Master can grant me a few requests."

If you cannot accept my conditions, make an agreement with me—I will return to the Throne of Heroes now.

"?"

Shirou turned back to look at Ms. Avalon with some surprise.

However, the silver-haired beauty exuded an atmosphere completely different from the previous moment, as if asserting that she was not joking with her Master.

Shirou returned to his seat without saying a word.

"You say it."

"First, I will neither appear in this Holy Grail War nor fight directly."

What does this sentence mean?

"Spiritualization... Master should have already heard about it, right?"

Shirou nodded, and Ms. Avalon continued.

"That means I will be in a spirit form throughout the ritual, and will not appear in front of anyone other than my Master, nor will I fight against enemy Servants."

Of course, I won't do nothing. I'll assist from the sidelines and do my best as a support person... without revealing my identity.

Shirou opened his mouth slightly in surprise and asked, "Are you asking me to go and fight the enemy's Servants?"

Even though he is a qualified magician who can summon Servants, Shirou Amamiya's body is still that of a child.

Why would Merlin's sister send an 8-year-old to the front lines to fight against heroes from mythology?

"Is it because of your class ability?" Shirou asked.

“That’s right, I’m better at covert support work… but that’s not the main reason.”

The silver-haired beauty narrowed one eye slyly and said with a seductive expression:

"Because, Master, you are clearly more suited to the front lines than to providing support from the rear."

Shirou: "…………"

"Rest assured, I will do everything in my power to protect Master's safety."

Shirou looked directly into her eyes and asked, "Can I trust you?"

Ms. Avalon nodded and said, "Please believe me."

Shirou said, "Understood, let's settle on this."

Ms. Avalon smiled radiantly, like a blooming flower: "Okay, let's move on to the second point."

Shirou frowned: "Anything else?"

The female magician said with a serious expression, "In fact, this is the key point. I demand that Master assure me that you will absolutely not reveal any information about me to the outside world."

Real name, class, abilities, background, and relationship with his brother...

Can you keep all this information from being revealed to anyone?

"If you can't do it, you'll return to the Throne of Heroes, right?"

Ms. Avalon paused for a moment, then nodded with a resolute expression.

"I understand. I promise."

Shirou readily accepted; compared to the first condition, the second one wasn't as demanding.

Rather, even if she didn't ask, Shirou wouldn't have brought it up anyway.

All eyes are on me! I have an announcement to make! I, Shirou Amamiya, have summoned a Servant who was just found on the street!

—That's not the case.

Ms. Avalon clapped her hands excitedly: "Great! I knew you'd say yes!"

"Then please take good care of me for the next period of time, my lovely little Master~"

Shirou: "Are you done?"

Ms. Avalon: "Yes, that's all."

Shirou: "Now that you've finished speaking, it's my turn to speak."

Ms. Avalon: "Huh?"

The red-haired boy said matter-of-factly, "We can't just let you be the only one making demands."

Ms. Avalon gave a strange look: "…………Please speak."

Shirou said, "During the time when my elder sister is in spirit form, you must not interfere with whatever I do."

Of course, you are welcome to point out or criticize me, but I will completely ignore you and do what I want to do.

"……Well."

Lady Avalon's pink lips were slightly parted; she clearly hadn't expected Shirou to say such a thing.

"What, you can't accept it?" Shirou pressed.

The female magician, who had been composed since her arrival, was thrown into disarray.

"No, no... but my value as a Servant lies in providing advice and strategies to my Master..."

"While I am in physical form, I welcome any communication, but during my spiritual form, I regret that I will not accept any advice from you, elder sister."

Ms. Avalon asked in astonishment, "What if I don't agree..."

Shirou said in a nonchalant tone, "Then I'll have to ask you to return to the Throne of Heroes. Now, set off immediately."

"Well."

Ms. Avalon's beautiful face turned deathly pale.

A few seconds later, she bit her lip and slowly lowered her head.

"...I promise you, Master."

Upon hearing this, Shirou shook her hand with satisfaction: "Please take care of me from now on, Avalon-neechan."

And so, Shirou made a verbal agreement with the silver-haired beauty who called herself Lady Avalon.

Thus was born probably the most complicated master-servant relationship in history.

……

……

The next morning.