Shirou, who returned from the Fairy Kingdom

One morning, the older sister suddenly said to Ayaka, who was only 8 years old at the time:

"Father won't be coming back. From today onwards, it's just the two of us living together."

Ayaka Sajou was able to understand what her sister meant, and she cried for a whole month.

However, even during this month, Ayaka Sajo did not stop practicing magic; this was the only way she could respond to her father's expectations.

"As a result, even at this age, I'm still only a novice when it comes to magic."

Ayaka Sajou sighed softly.

Recovering from her slight sadness, the girl left the garden and headed towards the restaurant.

Ayaka Sajou's mother passed away shortly after her birth, and her father took care of the housework and cooking when she was very young.

After her father passed away, the job fell to Ayaka Sajou's older sister.

My older sister is probably in the kitchen preparing breakfast right now, the girl thought.

For Ayaka Sajou, her older sister's existence was special—

Not only because her older sister has raised Ayaka like a mother for the past ten years.

It's definitely more than just gratitude or sisterly affection.

elder sister--

Sajō Aika is the person Ayaka admires and idolizes the most.

She thought so when she was very young.

My older sister is both beautiful and intelligent.

Despite being only six years younger than me, she is a perfect genius who knows everything and is good at everything.

Even magic—

It is said that when her older sister was six years old, her father had nothing left to teach her.

As a child, Ayaka Sajou even thought that her older sister was actually the reincarnation of a princess from a fairy tale who lived in a castle.

It is both beautiful and dazzling, so sparkling that it is hard to look directly at it.

However, this same sister— 3 years ago—

"Ayaka? You're up. You could have slept a little longer."

"It's alright, sister."

Ayaka Sajou walked into the kitchen.

Beside the pool by the window stood a girl so beautiful it was hard to believe it was real.

Not a woman, but a lovely and charming young girl.

Her platinum blonde hair was so soft that sunlight could easily pass through it, and her eyes were light and clear.

She was wearing an emerald green dress, but what was even more beautiful than the dress were the girl's features.

Like a flower blooming in the radiance—

The beautiful elf described in the legend would probably be so embarrassed by her that he would hide in the forest.

Ayaka Sajo went to Aika's side to help.

"Could you please get me the plates from the cabinet upstairs?"

"Ok."

Ayaka Sajou opened the cabinet above her head and took out two plates.

Ironically, this might be the only thing she could do to help.

As the younger sister, Ayaka Sajou is half a head taller than her older sister.

This isn't because Ayaka is tall, but rather—

From the time she can remember, Aika's appearance has never changed.

My sister is 23 years old this year, but she still maintains the appearance and temperament of a 14-year-old.

Whether it's height or breast development...

Sajō Aika is as adorable as a princess from a picture book.

"Ah, not over there, it's the plate for bacon and fried eggs, so it's small. Also, the toast isn't thick slices, it's thinly sliced."

"I see."

Ayaka, who doesn't do housework often... no, even if she does housework often, she can't compare to her older sister.

Aigo moved swiftly yet gracefully in the kitchen.

However, my older sister wasn't like this before.

Although she had been taking care of the housework for many years, her love song back then was different from now; it felt like she was just preparing the necessary things.

Efficient and skillful, like a robot.

And now, when Aika cooks, the atmosphere is different from before—she has become more sparkly.

The plates in front of the two were laden with a sumptuous English breakfast.

Bacon and eggs, toast, salad, milk, kidney pie.

There was also fish and chips, cheese and ham, porridge and scones, black tea, and then dessert with sliced ​​peaches and plums.

This doesn't look like the amount of breakfast two girls would eat.

Starting three years ago, my older sister, Ayaka Sajou, seemed to have become a completely different person.

She became more energetic than before, was in a great mood every day, and began to study British cuisine.

"The book says that the British like to eat cod..."

"Although I don't know if the ancient Britons were like that too, haha."

As Aika Sajou uttered incomprehensible words, a gentle, happy smile appeared on her face.

What exactly happened to my sister?

At first, Ayaka Sajou thought that maybe he was in love.

Although in her heart, Ayaka Sajou will always be the image of a fairy tale princess, she has indeed reached that age.

Once, Ayaka tried asking her older sister, "Have you met a man you're attracted to?"

However, she did not answer, but only nodded ambiguously.

Therefore, Ayaka guessed that her older sister must be in love, somewhere she didn't know.

Judging from the dishes her sister prepares meticulously every day, the other person is like her mother... British? And also a magician?

But my sister almost never goes out except to buy groceries, so where did she meet her boyfriend?

The internet?

There's no computer at home.

Although Ayaka Sajou couldn't understand it at all, she was still genuinely happy for her sister.

"Ayaka, hehe, why are you suddenly spacing out?"

Sajō Aika's beautiful voice, like a siren's song, pulled the girl back to reality.

"No..." Ayaka turned her face away to cover up her embarrassment.

"Hey, could you try it for me?"

"Hmm? Okay, sure."

"Thank you. Come on, open your mouth... how about that?"

"good to eat."

"Really? Since Ayaka says it's delicious, then it should be fine, right?"

Aika said happily, while Ayaka protested, "I'm not picky about food anymore."

After the two sisters finished their overly lavish breakfast at the table, Aika began making preparations for their trip.

Ayaka didn't ask her sister where she was going because she felt she wouldn't get an answer even if she did.

She's probably going to see a man...

For the past three years, my sister has been longing for that British man.

"I'm leaving the house to you, Ayaka."

Sajō Aika said, standing at the entrance.

Ayaka didn't want to worry her older sister, so she acted more outgoing than usual.

"Okay, I'll take care of the house. Sister, be careful on the road and come back soon."

"Hehe, I'm heading out now."

Sajō Aika tiptoed, touched Ayaka's hair, and then turned and left.

"..."

Ayaka, standing at the door watching her sister's retreating figure, felt a very uncomfortable feeling for some reason.

what happened?

I should be happy for my sister, so why am I—

She suddenly came to her senses.

The older sister's back view looked exactly the same as when her father, Hiroki Sajou, left home nine years ago.

The girl's eyes widened.

She suddenly realized that she might never see her sister again, just like her father who would never return—

Ayaka rushed out of the yard.

She looked around, but Ai Ge's figure had already disappeared.

"No...it's just my imagination."

The girl pressed her hand to her chest, trying to comfort herself.

My sister is a more outstanding and powerful magician than anyone else, so even if she encounters a bad man, there's nothing to worry about...

Ayaka Sajou is still unaware:

The sister will face not ordinary humans, but a chaotic vortex called the "Holy Grail War".

……

……

In order to be able to summon Heroic Spirits in their full potential, Hyoma Sagara, a magician of the Yggdrasil clan, returned to his homeland, the Far Eastern island nation, after many years.

At the initial Yggdrasil meeting, he told his fellow Yggdrasil members that he would choose an Assassin's Servant.

In this world, since the information about the Fuyuki Holy Grail War was leaked more than a decade ago, small-scale magician wars have been breaking out all over the world—

A fight can begin with as few as two riders and as many as five riders.

The Holy Grail War is raging fiercely and rapidly around the world.

Even magicians who lamented that the Root was like a distant dream became obsessed with creating the Holy Grail after learning that they could get one step or half a step closer to the Root through this ritual.

Of the approximately one hundred produced, ninety-five were damaged during the manufacturing process.

Of the remaining five finished products, four exploded after being infused with magic while still incomplete.

The last one was established through a deterioration ritual that was incomparable to that of Fuyuki.

This is the magical ritual known as the "Subspecies Holy Grail War".

The early stages of the subspecies Holy Grail War were known as the "Spring of Assassins," with Assassin being the most powerful class.

The ritual, which was originally a terrible Holy Grail and a low-quality territory, ironically turned the extremely low mana cost and performance of Hassan-i-Sabah into an advantage that could not be restricted.

They relied on their excellent stealth and assassination skills to repeatedly achieve victory by killing magicians.