"Shirou, I'm not a normal magus. I'm the Magus Killer, and you're going to be the next one. That's the only way to save Illya"

OOOOOOOOOO

"What? No, you shouldn't turn your nerves into circuits, if you continue doing that you will kill yourself. Let me check something...Hpmh, I was right, you have Magic Circuits of your own, 27 mid quality Magic Circuits to be accurate. Well, we are lucky that I found them soon. If I didn't they would have become of low quality with the time"

OOOOOOOOOO

"First, I'm going to teach you Structural Analysis. Most magi say that it's useless, but if you know how to use it, Structural Analysis can be a really useful tool"

OOOOOOOOOO

"Well, let's continue with the next thing. Reinforcement"

OOOOOOOOOO

"Not bad...Continue training with your reinforcement in those lamps"

OOOOOOOOOO

"Shirou, you're ready to the next level. I'm going to teach you how to reinforce your body to it's limits. Pay attention, this is dangerous"

OOOOOOOOOO

"Hmph, you're much better than I expected. In a 3 months or so you should be in a really good level with the reinforcement"

OOOOOOOOOO

"Now, I'm going to teach you how to break in Bound Fields without being detected and how to create some basic ones of your own"

OOOOOOOOOO

"Not bad at all...You should be able to sneak into most magi workshop and erect some basic Bounded Fields now"

OOOOOOOOOO

"Okay, Shirou, now I'm going to teach you alteration. This should be harder than reinforcement so don't get disappointed if you're bad with it at the start"

OOOOOOOOOO

"Hmph, in 2 months or so you should be in an aceptable level with the Alteration. You don't have much talent with it so we should leave it at that"

OOOOOOOOOO

"Shirou, come here. Do you remember your Origin and Affinity? Yes, both of them used to be 'fire' but look at this. It seems that somehow now both of them are 'sword'. I don't know how this happened, but it probably has something to do with Avalon"

OOOOOOOOOO

"Well, Shirou, now I'm going to teach you projection. It's useless in battle but it will help you to learn how to control your prana better"

OOOOOOOOOO

"What? No, projection isn't supposed to do that, let me see it...Shirou, you've created a new magecraft. A normal projection shouldn't last for more than a few minutes, and this sword you 'projected' is far too good to be a projection. Tell me how you did it"

OOOOOOOOOOO

"I see...so you used more steps than usual. And combined with your talent with Structural Analysis and unusual Affinity and Origin you did a much more durable protection...This may have an use in combat...Shirou, you're going to start sparring with Taiga in the dojo starting tomorrow.

OOOOOOOOOOO

"Shirou, I want you to have this. It's called Thompson Contender and those ten bullets are called Origin Bullets. Any magus would die if you attacked them with this if they were using their Magic Circuits. Be careful with the Origin Bullets, you only have ten and I can't make you more.

OOOOOOOOOOO

"Okay, this is the last thing I'm going to give you, Shirou. I'm going weaker because Angra Mainyu's curse every day...I probably don't have more than a month. You're going to need this more than I and with Avalon inside your body you should be able to survive to the operation. Shirou, I'm going to give you the Emiya Magic Crest"

OOOOOOOOOOOO

"Shirou, listen carefully, you're going to become the Second Magus Killer and you're going to save your sister from the Einzbern. Never forget this, in order to save someone you have to kill other one. You can't save everyone, no matter how hard you try...

"...I'm proud of you, son. Please don't repeat the same mistakes that your old man did when he was younger"

After that, Kiritsugu closed his eyes and never opened them again.

OOOOOOOOOOO

After Kiritsugu's death. Shirou is 12 years old.

Shirou was bored. He shouldn't be at school, he should be saving Illya, or killing some Dead Apostles, or ANYTHING else.

School was bored and it won't help him to become the Magus Killer at all.

However, that didn't mean that Shirou had absolutely nothing to do there.

"Hey, what the fuck do you think are doing?" Shirou asked with no small amount of hostility.

Seven bullies were mocking a purple haired girl obviously younger than them. She was covered in bruises

'They even punched her...'

"Oh fuck is that guy! Boss, what do we do now?!" One of the bullies asked, obviously afraid of Shirou.

Shirou didn't blame him. After all, he had a hobby in kicking the bullies asses and he was well known for that in his school.

One of the bullies, the boss, Shirou supposed, answered "Let's kick his ass. We are seven and he's just one. No matter how good this guy is he can't beat all of us at the same time"

"Yes, boss!" All the others bullies said at the same time

'These guys really want to die...Shirou sighed

"Well then, and here I thought we could have resolved this peacefully..."

After those words Shirou did a quick reinforcement in his body. While his father told him to not to use magecraft in public nobody would notice a little of reinforcement, and if he didn't practice he would get rusty.

The bullies didn't have a chance. In less than fifteen seconds all of them were in the floor begging for mercy.

"P-please stop!" One of them cried.

"Oh? And why should I? Why shouldn't I send all of you to the hospital right now?" He said

"P-please no! We will be good but please don't harm us anymore!" Another one cried.

"Agh, that's no funny..." Shirou muttered to himself. In one hand he liked to make bad people suffer, like how he was going to make the Einzbern suffer for all they did to Illya and Kiritsugu, but in the other hand he understood that these guys were just some random idiots that thought it would be funny to mock a younger girl, that they weren't some kind of magical monster who wanted to destroy the world or something like that.

"Hey, are you okay?" Shirou asked to the girl. In the moment he turned his back to them the bullies escaped.

"W-why?" The girl replied with another question.

"Why what? I don't need a reason to help someone in trouble. So, what's your name?"

"I'm Sakura Matou...erm, what's your name, Senpai?"

Shirou didn't know what to do now. His father told him that he should be careful near the Matou and the Tohsaka, as they were both families of magi. But...this girl looked so harmless...there was no way that she was a magus, right?

"I'm Shirou Emiya, nice to meet you Sakura" Shirou said with a little smile. "Well, I think I have to go now, see ya!"

But when Shirou turned his back to her she cried:

"Wait! Please don't go!" When Shirou looked back at her, she noticed how she shouted in the middle of the school gate while she blushed deeply and tried to avoid his gaze. "Er, I mean...Would you like to have dinner at my house after school, Senpai? You know, if you want to and your parents don't have a problem with it..."

"Sure, why not? I guess I would have to ask Fuji-nee first if I can go but I will probably be there, bye Sakura-san!" He said and started running to classes.

When Shirou disappeared from her sight, only one thought remained in Sakura's mind.

'He helped me...He doesn't hate me...'

And with those words, the first smile in five years appeared in Sakura's face.

OOOOOOOOO

After school

"Hey, Fuji-nee, you will have to eat alone tonight. I have somewhere to go" Shirou said to his self-proclaimed 'Big Sister' while she entered to the Emiya residence.

"WHAT?! NO! WHAT DO YOU THINK ARE YOU DOING, SHIROU?!" Taiga roared to her 'little brother'.

"As I said before, I'm going to eat somewhere else. Also, would you be so kind to lower your voice?" Shirou rolled his eyes.

"Oh? And where is this 'somewhere else'? A girl's house?!" Taige screamed at him

"Actually..."

"OH NO! MY PRECIOUS SHIROU-CHAN CHANGED HIS ONEE-SAMA FOR A GIRL! WHY SHIROU?! WHY????!!!!"

"Goddammit Fuji-nee! I'm not replacing you by anything! I barely know her and was HER idea, not mine! I'm out!" After that, Shirou took his leave from the house.

"Hmph, you used to be so polite and kind. Since Kiritsugu's death you keep behaving like this. What happened to you, Shirou?" 'Though I may have said a little too much...'

OOOOOOOOO

"Tch, what's her problem?" While it was true that Shirou's temper had been much shorter than usual since Kiritsugu's death, he had a reason to be angry this time.

Taiga was always like that, screaming and jumping to stupid conclusions before Shirou could even talk, and Shirou was starting to get sick of it.

Don't get him wrong. He loved Taiga (As his sister, obviously) and he would die protecting her if he had to, but that didn't mean that he liked everything about her.

When he arrived to Sakura's house (Not like he noticed that he forgot to ask her where it was and that he only knew it because all his father's warnings about Zouken Matou), he knocked the door and waited.

After a few moments, an old man opened the doors.

"Ah, you should be Sakura's guest, my name is-"

"I know who you are, Zolgen Makiri, save your excuses for someone else" Shirou interrupted him before he could even end.

"Oh? And with who I'm speaking, then?" The old Makiri asked.

"...The Second Magus Killer" Shirou answered after a few moments.

"I see, I didn't know that him had a son..." Zouken Matou/Zolgen Makiri said.

"Well, every day you learn something new, right? I'm going to help Sakura-san in the kitchen" Then, Shirou entered the house leaving Zouken alone.

"I wonder whatyour son can do, Kiritsugu Emiya..."

OOOOOOOOOOOO

AN: Hey there, this is the last story I would be working at the same time. "With Wings And A Mind Of Steel", "The Crimson Saber", and "The Second Magus Killer" will be my only fics by now.

I don't write them one by one because my mind doesn't work like that. If I have to concentrate in just ONE thing, I can't. However, when I'm doing multiple things somehow I do it faster, don't ask why.

Well, tell me what you think about this one. Also, I forgot to add the AN to the first chapter of "The Crimson Saber", sorry for that :P

Update: I received a review and I wanted to respond as fast as possible.

You asked me why Shirou said that he was The Magus Killer, right? Well, there was no point in lying to Zouken about that. In the moment he heard to name "Emiya" it was impossible for him to mistook Shirou for someone who wasn't Kiritsugu's son. What were the possibilities of an "Emiya" who wasn't related to The Magus Killer to live in Fuyuki of all places? It was preferable to not lie to him, in the long run lying to Zouken would have made the things worst.