Unlimited Blade Works: Lunar Requiem

Prologue

I open my eyes to see myself in a forest near a destroyed city on fire...

Fire...

Fire everywhere...

Sea of flames... Who could have done that?

More importantly, Where am I?

Actually... Who am I?

I look around to a tiny water pond, to see myself...

I'm a little boy? Around 7 I think. Beautiful black hair and eyes for a male... ikeman? I'm wearing a yellow raincoat, white shirt and grey shorts.

But... I can't remember anything except my name...

Kazuto.

I run to the city, as I go there, there were screams, mostly children...

I tried to save them but they're gone... As if it's a curse set upon them.

Angra Mainyu...

I shake my head and look for anyone.

Anyone...

Anyone!

I look around, run, search...

Then I felt a... life force? Under these debris!

I remove the debris that are thankfully not big and heavy under... A young girl, around the same age as I am, with Auburn hair and golden-brown coloured eyes, wearing a jacket and a blue skirt.

Her eyes are, as if, lifeless but she's still breathing and she's hurt badly.

Kazuto: I need something to heal... Heal!

Then my hands glowing light green as if I cast a spell and point it to the girl, who now glows as well as her wounds recovers.

The girl looks at me and reaching for me, so I grab her hand. Then I scream for help.

Kazuto: Someone! Help us! Please!!!

Then I sensed someone, running to us. I saw a man, black hair and dull eyes, wears a black suit and trench coat. His face, even though it's blank but it was as if he regrets something, trying to be a hero.

Then my head starting to hurt as if memories rushes through my head.

I remember...

Fate...

Then this man must be...

Kiritsugu Emiya, the Magus Killer, the winner of the Fourth Grail War.

Kiritsugu hold our hands and seem happy.

Kiritsugu: Thank you...

I look at him...
He doesn't have Avalon...

Then I thought I heard a laugh. I look at the source of that laugh and saw... Kirei Kotomine.

I'm really am in Fate Stay Night...

Then my head was filled with questions.

What route is it?

Did I already ruin the timeline just from my existence?

If this girl is Shirou, then who will be the protagonist?!

And most importantly, who am I supposed to be?!

What will happen to me?

Best that I need to get strong. If I can cast a spell like I did to Shirou, I should found out more.

Besides, I already get myself involved without realizing.

Maybe I can cure Kiritsugu from Angra Mainyu? Though that would only make things worse at the fifth Holy Grail War, especially if he's going to be Saber's master again and going to kill the other Masters, though I would love to see him against Kuzuki.

Maybe I should teach Shirou? I'm not sure myself know about Projection Magic but maybe teach her a few key points and such of proper magecraft training. Though if she has the magic circuits that can produce high amount of Prana and able to create Divine-level Noble Phantasms, it would only make her a target by the Clock Tower for experimentation...

I look at Kiritsugu, hoping that everything will be alright and knowing the consequences of actions.

- Meanwhile... -

???: This is interesting...

???2: Hey, Zelretch! What the hell do you call me for!?

Zelretch: Is that your way of talking to your Master, Slayer HOMURA?

HOMURA: I'm just your contracted guardian or protector or something... Just like how Emiya become a Counter Guardian with Alaya...

Zelretch: Hmm... Speaking of Emiya. Care to see this?

Zelretch moves the floating screen to the flame-haired burning-eyed red coat slayer. As the Slayer watches more, his eyes open wide.

HOMURA: This wasn't supposed to happen! I wasn't even there at the time! And now Shirou's a girl!?! What kind of timeline is this!?!

Zelretch: At your timeline at least. Well, at least you have a chance to fight EMIYA again just like our deal the first time we made the deal. But you'll be summoned as Saber.

HOMURA: Arthur Pendragon, huh? Well no matter...

The Slayer unsheathe the nodachi on his back, giving a few swings before it was surrounded by flames, turning it into a large red halberd, swings down that leaves a crack on the floor, dismantles into a cannon and fires a large fireball at the sky.

HOMURA: As long as I have Engetsuka and Camael, I'll cut through Emiya's Reality Marble of thousand swords, Unlimited Blade Works.

Zelretch: Hmm. Then you have time to prepare yourself, Slayer HOMURA. and also, this timeline might be... Kazuto Route or even a threesome relationship with him, Rin and Shirou.

HOMURA: ...

And thus upon hearing that, Slayer HOMURA disappears.

To be continued...