backstory

accelerator: last order where are you hiding

last order: you would never find me says misaka misaka whiles laughing at you

accelerator: come on come right here now i don't have time for this

last order: i know you have nothing to do today says misaka misaka

(accelerator looking for last order who plays hide and seek with him but he hear he's phone ringing)

accelerator: oh hey who is it

anonymous: give us last order or we send the best assassin in history

(accelerator hang up)

accelerator: what is it who is that stupid son of a bitch

(an arrow shut into the house but accelerator reflect them and jump outside in front of future shirou emiya)

f shirou: give me the girl kidnappeder

(accelerator look confused being attack by this wired guy)

accelerator: pls do you have any idea at all why i am the first rank

f shrou: doesn't matter I am the bone of my sword. Steel is my body, and fire is my blood. I have created over a thousand blades. Unaware of loss, nor aware of gain. UNLIMITED BLADE WORK

(accelerator look around a wired place with 1,000 of swords)

accelerator: i had enough

(accelerator start walking twords future Shirou who attack him and see everything get reflected accelerator stand right in front shirou and say)

accelerator: you want to be a hero kid tehm you should die like one because you are a low level villain who could never deaft first rank

(they both fighting but in the end after really a one attack accelerator win)

accelerator: next time don't try to be a hero because you are not one you are mentally broken and hero happy to save people not suffer for it

(accelerator leave shirou injured he want to talk shirou but he was so injured he rush to the hospital)

((back to the present))

accelerator: and that's how i met shirou emiya for the first time

illya: that's awesome so you know our enemy and you know how to beat him

accelerator: well yes i am shirou emiya against someone without vector manipulation

illya: can you explain your power more

accelerator: yes indeed i have both passive and active ability the passive one is the barrier i am using to reflect any attack that's come twords the active one is the vector manipulation i use

illya: anyway we need to get ready we have a holy grail to win

accelerator: yeah on it