Fate: Hero of Justice Takeover

Inside a certain department store.

Endless corridors, disordered intersections, and doors that appear hazy under the setting sun.

A figure with golden hair and clad in armour walks through the scene, seemingly gathering all the brilliance around her.

Amid the crisp sound of armour brushing, the woman clad in extravagant attire, with blood-red patterns adorning her body, strides through the fire escape door—only to be met by a small changing room and a lethal blade shot towards her!

Facing the sudden attack, the woman named Angelica Ainsworth lets out a cold snort. Golden ripples radiated around her body, and even sharper blades emerged from the ripples, intercepting and shattering the incoming weapon before it disintegrated into particles of light.

Roughly pulling aside the curtain of the changing room and stepping inside. She was met with what looked like an electronic store, with numerous TVs of various models before her eyes, like an audience of onlookers mocking her dishevelled state.

"Enough!"

As her last shred of patience was exhausted, she let out an angry roar. Her fury erupted into a storm of blades, with countless weapons emerging from the golden ripples, wreaking havoc on everything around her.

Fragments of LCD screens scatter, reflecting her grim expression.

Angelica knows that this building has already transformed into another dimension. The concept of space has been twisted into incomprehensibility by magic. Even with her knowledge of similar magic, she cannot untie this tangled mess—unless she's willing to spend the entire night solving this mess.

But doing so would fulfil the man's objective.

Therefore, she needed a quicker, more decisive way to escape this situation—and there was only one method that came to her mind in this situation!

Angelica, versed in ancient mysteries, raised her right hand high as uncountable golden ripples revealed behind her.

"Open Gate of Babylon!"

With her command, the gates to the treasure vault of the Golden City opened completely. Unleashing countless treasures and miracles from the golden ripples, bringing one of the most violent and raging destruction to the space around her.

The twisted dimension was torn apart, returning to order.

The concealed magic was separated, and its mysteries dispelled.

The dimensional magic in this space disappeared along with the department store, reduced to nothingness.

Under the red setting sun, only the golden figure stood alone amidst the ruins of the building, her cold, apathetic blue eyes locked onto a white-haired figure before her.

"I've caught you… Emiya Shirou, don't even think of resisting. Hand over the servant card crafted by Lord Darius and return to Ainsworth Castle to continue your imprisonment—do that, and you a pathetic Faker, might live a little longer."

Under her murderous glare, the young man's lips curled into a small mocking smile, one utterly different from his former self.

"First of all, I'm not the Emiya Shirou you think I am. You can call me Sakatsuki. Secondly, Angelica Ainsworth, a doll who used a Class Card to borrow the power of the ancient King of Heroes..."

A sharp weapon pierced through the youth's body before he could even complete his sentence. Yet, with a faint smile, he continued provoking her.

"You think you can catch me?"

More weapons flew out, stabbing his face and tearing apart his smile. But, when the dust settled, what remained before Angelica was a lifeless doll.

"Displacement magic... Tch, Emiya Shirou—no, Sakatsuki!"

Angelica crushed the doll underfoot, but her anger flared due to the elusive mouse.

"How did this guy even manage to obtain Ainsworth's magecraft?"

***

Kilometres away from the department store, inside a church, a white-haired, golden-eyed youth opened his eyes, scratching his head in frustration.

"Ugh, the last doll I swiped from Ainsworth Castle is used up… What a pain, that flashy woman..."

Remembering the golden figure gives me a headache.

Though he managed to mock her and escape unharmed, no one knows better than him how troublesome that woman truly was.

At a thought, an ethereal blue text appeared before his eyes, forming a small panel.

=====

[Fate Compendium: New Data Unlocked]

[001: Angelica Ainsworth]

[Character Info: A doll from the Ainsworth family, also working as a maid. She is adept in using Ainsworth's Displacement magic, Flash Air, capable of warping objects through space, or moving a target's consciousness to substitute a person's soul and create dolls with virtual consciousness.]

[Hidden Info: Locked]

[Record Conditions: 2/3]:

•Escape Ainsworth Castle (Completed)

•Evade her pursuit for seven days (Incomplete)

•Hidden condition (Incomplete)

=====

At this point, the youth's identity is clear.

Indeed, he is a transmigrator who has been reborn in Shirou Emiya's body, possessing a cheat ability called the Fate Compendium!

Upon awakening, and analyzing the remnants of this body's memories, the youth, now Sakatsuki, quickly piece together his situation. He has entered a vast, fictional world that was created by a certain mushroom. A world of endless wonders, branching paths, and worldlines.

When he discovered this truth, as a devoted fan of the Nasuverse, he nearly struck a JoJo pose, but reality bound his hands, stopping him.

The memories from the original body, from Shirou Emiya are deeply etched, making him realize that this is a world of Fate/Kaleid liner, within the worldline of Magical Girl Illya.

At this moment in time, the events of the movie 'Fate/Kaleid liner Prisma☆Illya: Oath under the Snow' have just concluded. Shirou Emiya, unable to withstand the onslaught of the Ea, the Sword of Rupture, wielded by Angelica Ainsworth, was ultimately defeated and captured, and imprisoned in the depths of Ainsworth Castle.

However, in this world, Shirou Emiya didn't last until Miyu returned but died after summoning a soul from another world.

Even though the original will of Shirou Emiya has faded, Sakatsuki, inheriting this power and will, would continue to oppose the Ainsworths.

Thus, he concealed his presence.

Thus, he broke free from the chains.

Thus, during Angelica's absence, he stormed out of the dungeon and into the heart of the castle.

Though Darius Ainsworth, the family head, escaped during the chaos, Shirou Emiya—no, Sakatsuki—still managed to seize five completed Class Cards and one blank card, with imbued power but no class, leaving triumphantly.

As his mind refocused, the white-haired youth sighed softly.

"Speaking of… It's already the seventh day, isn't it?"

The ethereal blue panel in his vision faded away, and five class cards bloomed like flowers in his hand before closing again. Standing up under the moonlight, Sakatsuki stretched lazily.

"Why hasn't Kirei Kotomine, that fake priest, returned yet… Could he be hiding from me?" 

Sakatsuki sighed helplessly, stepping outside the church. 

"Fine, I'll spare him this time. I'd better leave before that flashy woman shows up."

Diamond patterns formed under his foot. As magic activates, space appears to warp, eliminating distances, and Sakatsuki swiftly vanishes from the church vicinity.

Displacement Magic.

Though a basic and low-level spell, based on the fundamental rule that the replacement will always suffer from degradation, only a few use it. But in the hands of the Ainsworth family, who specialize in it, the scale, accuracy, and application range of their displacement deviates from the common sense of magecraft, even touching upon abstract concepts like space and spirit.

Yes, it is the Ainsworth family's speciality magic, against whom Sakatsuki is now fighting. In combat, it is incredibly powerful and impossible to defend against. Angelica survived Shirou Emiya's fatal strike precisely due to this magic.

For the Ainsworth family, Displacement magic is their strength. But when such power falls into the hands of someone opposing them—like Sakatsuki—it becomes a nightmare.

As for why Sakatsuki could use this magic…