Prologue

After a roared thunder and a great wind, on top of the summoning circle, a man's silhouette can be seen behind the cloudy smoke. The other two people who watched the summoning process at the Tohsaka mansion's underground can't help but felt astounded.

It seems the summoning was success, Tohsaka Tokiomi thought. Even though I lost the artifact that I intended to use as the catalyst, apparently a servant can still be called forth without that. Well, it must be depending on the summoner's skill as a magus, too.

The man stepped out from the altar. A knight in red, his coat fluttered as he walked. There's no noble aura coming from him, but the gallant figure in front of them was undoubtly a heroic spirit.

"Are you the master who called me?" asked the man.

"Yes. My name is Tohsaka Tokiomi. May I know which servant class are you?" answered Tokiomi with his usual arrogant attitude. Somehow he can't help but feel a bit disappointed with the servant he has called. He was wishing for the strongest servant that will bring him to victory in this fourth Holy Grail war. If only he didn't lose the artifact, he would have done that.

"I might not look like one, but I'm from the Archer class." answered the man. He was frowned a bit when he heard the name 'Tohsaka'.

"I see. And if I might ask, which hero are you? I've never seen an archer hero from the past that looks like you." said Tokiomi again.

"Maybe it's because I'm coming from the future." said Archer. "The heroic spirits realm is not bound by the normal time axis. Therefore, if the hero from the past can be called forth, so is the future's."

"Hm, that does make sense." Tokiomi nodded. "Still, I would like to know which hero are you?"

"Yes—I was known by the name Emiya." replied Archer.

Now was Tokiomi's turn to be astonished. "…Huh? Emiya…? Are you by any chance related to a man named Emiya Kiritsugu?"

Archer looked a little surprised to hear that name, but he answered calmly. "Kiritsugu… I do know him and he's related to me, but I'm definitely not him."

After he looked around the place, and the two other people who saw the summoning process, Kotomine Risei and Kirei, he talked again to Tokiomi with a firm voice.

"I think I understand which era I've been summoned into. I must say I'm sorry; I can't let you know further about my previous life. I don't want the future of this time to be twisted because of me."

Tokiomi looked a bit confused, but he didn't really mind it. "I get it. But promised me you will fight with all you've got in order to win this war with me."

"Certainly, master."

"I will see you later when I need you to fight. Father Risei and Kirei-kun, please follow me outside, I want to have a conversation with you." Then Tokiomi walked outside the basement and quickly followed by the two, while Archer is still silently observing them.

Deep inside, Archer was thinking about many possible situations involving people from his past that he will encounter. But still, it seems like his wish is yet to be granted…

By the meantime, he will just act like a normal usual servant for now.