Shirou was eating a meal by himself in Chaldea's Cafeteria.

It was then that a certain servant came into the room.

"Hey, is this seat taken?" the person said.

Shirou stopped eating and looked at the person that was talking to him. He saw a tanned-skinned youth with white hair like silver in a ponytail and with dark ageless golden eyes. He was wearing clothing that is a mixture of traditional samurai outfit with European influence. It was a jinbaori-style haori with Christianity crosses decorated on them along with a traditional umanori hakama with shin guards which had cloth straps that were used to tie the shin guards attached to his lower legs and a collar shirt underneath his kimono and a cravat-tied around his collar. He was also carrying a box.

All and all, he looked like he was from feudal Japan.

"Nope. That's seat free. You can take it if you want," Shirou replied.

"If that's the case, then I'll be sitting here then."

"If you wish."

The person then sat on the empty seat in front of him and placed the box on the table. As Shirou continued eating his meal, the person then said something.

"By any chance, are you Emiya Shirou?"

Shirou stopped eating and said, "Yes. How do you know me?"

The person cleared his throat before saying, "Sorry for not introducing myself earlier. My name is Amakusa Shirou Tokisada."

Shirou was speechless for a moment before saying, "Amakusa Shirou Tokisada? The leader of the Shimabara Rebellion?"

"Yes. I take it that you know me then."

"Yeah. You were recorded in history books throughout of Japan's history. In fact, there's even a statue of you right now."

"I see...guess after my death, I was well known then."

"Yes. Although I guess the history books were quite inaccurate about how you look. Considering that well...you're in front of me now...and the history books drew you looking like a Japanese person...which is way different than what you look like now."

Amakusa Shirou chuckled. "I can't blame you. History tends to be a bit incorrect in some areas..."

"You have no idea," Shirou said as he remembered the first time he found out that the King of Knights was a woman. "Anyways, how do you know me?"

"Well...it seems master accidently mistook me for you apparently..." he said as he thought back to what happened earlier...

(A few minutes earlier...)

Amakusa Shirou was walking in Chaldea's hallway, heading towards the room where Ritsuka was. As he arrived at the room, he said, "You have called me master?"

Ritsuka then apologized. "Sorry, but it seems I called the wrong Shirou."

Amakusa Shirou was confused. "Wrong Shirou? Are you saying there's an alternate version of myself master?"

"Not quite actually. It's just that well, there's another servant that has the same name as you."

"Really? Who is it?"

"Emiya Shirou."

"Emiya Shirou...how come I never heard of him before?"

"Well, he's been working around in some areas of Chaldea and well...other servants that knew him have been keeping him..."

"I see. Then do you mind if I bring him over here?"

"Nope. I just need you to give him something," Ritsuka said as he gave Amakusa Shirou a box. "Here's what you need to give him."

Amakusa Shirou then held the box and said, "Where would Emiya Shirou be so that I can give this to him?"

Ritsuka thought about it and said, "Well...at this time of day...he would be at the cafeteria...try there first."

"Okay master."

And Amakusa Shiou left to find Emiya Shirou...

(Back to the present...)

"And that's how I knew you," Amakusa Shirou said.

Shirou let out a sigh before saying, "So let me guess this straight. You are here because master mistook you for me by calling out "Shirou?" and he sent you here to give me a box?"

"Yes."

Shirou let out a sigh. "I can't blame you. If anything, I would have probably made the same mistake as well. Since...well...there's another Shirou besides me and you."

Amakusa Shirou was confused. "Another Shirou besides you and me? Who?"

Shirou chuckled. "Well..."

(A few days ago...)

"Shirou!" Sitonai said.

"Hm? What is Illya?" Shirou turned around, hearing Sitonai's voice from behind.

However, he did not expect see Sitonai with a white bear next to her.

"Um...Illya...is that..."

"Hm? Oh, yeah. Onii-chan, meet my bear, Shirou. Shirou, meet onii-chan," Sitonai said as she was coming towards him.

"Eh? Oh, uhm...my name is Emiya Shirou. Nice to meet you...Shirou..." he said.

The bear just growled at him softly.

Shirou laughed nervously while thinking, "Since when did Illya got a white bear? And she named it Shirou..."

(Back to the present...)

"So, what you are telling me is that there's a white bear in which your little sister has, and she names it Shirou?"

"Yes."

Amakusa Shirou chuckled. "Wow. Guess we now one more person, or rather an animal, to worry about getting our names mixed up."

"You can say that again," Shirou said with a laugh.

"Yeah. Also, I've heard that other servants have been keeping you from master. Do you mind explaining that?"

Shirou chuckled nervously as he heard that. "Well...it's a funny story. Let's just say ever since my arrival in Chaldea, I was doing a lot of stuff with other people. Spending time with Arturia and her counterparts, Rin and her counterparts, Sakura and her counterparts, Illya and her sisters and counterpart, Luvia, my adoptive mom, my dad's counterpart from an alternate universe, my caretaker who happens to be in tiger pajamas, the Knights of the Round, getting along with Archer and his altered counterpart, cooking in the cafeteria, fixing something in Chaldea, testing something for Da Vinci and somehow being a part of her antics, training, being a part of Nero and her counterparts' antics, tutoring Jeanne D'Arc in math, and a lot more."

Amakusa Shirou was surprised with the amount of stuff Shirou was doing in Chaldea, especially the last part. "Tutoring Jeanne D'Arc in math? Are you serious?"

"Yes."

Amakusa Shirou laughed. "That's something you don't see every day. Although that would explain why Jeanne has recently been good at math."

"You know her? Well, besides from textbooks and such."

"Yeah. She was my enemy during a holy grail war I was in."

"I see."

"Speaking of which, how did you end becoming her tutor in math? I'm quite interested in hearing that story."

"Well...it was a request from her. Apparently, she knew me from her alter self in which she took me for reasons I do not know. And apparently, she got the information about me from interrogating her alter self."

"What did she do?"

"Honestly, I'm not sure."

"I see. Anyways, judging by what you just said, it seems like you are a saint to Chaldea with your work over there. Just like me."

"Why thank you. However, there is one thing I want to ask you."

"Sure. What is it?"

Shirou took a small sigh before saying, "Are you a counter guardian by any chance?"

Amakusa Shirou was confused. "Counter guardian? What's that?"

"Well, it's like a servant to humanity itself in layman's terms."

"I see. And no, why?"

"Well, you have features similar of Archer and his altered counterpart."

"Relax. I'm not one of those counter guardians you're talking about. The only reason why my skin and hair is like this was that after my third holy grail war, I spent 20 years in the middle east and my hair is like this because of my incarnation. Because of that, my appearance has been altered."

"I see. By any chance, was your holy grail war was different from mine? Because all I know is that during the third holy grail war in my timeline, the Einzberns didn't summon you."

"Seems like it. Anyways, after the third holy grail war in my time was over, I was adopted by Risei Kotomine."

The last word made Shirou drop his spoon and choked on his food. As he was coughing on the food that was stuck in his throat, Amakusa Shirou grabbed a glass of water and handed it to him.

"Need this?" he asked.

Shirou then grabbed the glass of water and started drinking it. As he drank it, his throat started to feel better. "Sorry you have to see that," he said as he cleared his throat.

"It's okay. Judging by the reaction you had earlier, I take it that you know the surname Kotomine?"

"You have no idea. By any chance do you know Kirei Kotomine?"

"You mean my stepbrother?"

Shirou's eyes went wide at that moment. "Stepbrother?! You're his stepbrother?!"

"Yes."

"Wow. To think that priest has a stepbrother in your version of the holy grail war...this is something I would have never expect..."

Amakusa Shirou looked at Shirou's surprised look and said, "I take it that you and your world's version of my stepbrother didn't get along well huh?"

"That's an understatement. He tried to kill me twice during the fifth holy grail war. Not only that, but he and my adoptive father tried to kill each other during the holy grail war before that. Also, he wanted to use the corrupted grail in my world to end the world just for his own twisted desires of seeing everyone in pain."

This time, Amakusa Shirou was surprised at what Shirou just said. "W-Wow. I know that my brother was twisted, but to think he would try to do this...even I'm baffled."

"Yeah. Was he that twisted in your world as well?"

"Yes. That's why I normally tend to stay away from him any time I see him. In fact, the last time we ever met together was during Risei's death, and that was a long time ago."

"I see. Are you twisted like him, where he would wish for the suffering of others?"

"Nope. I'm not like him."

"Is that so? Then what do you wish for?"

Amakusa Shirou took a deep breath before saying, "The salvation of humanity."

For a moment, there was silence between the two.

Even if the person in front of him is Amakusa Shirou, Shirou was surprised of the dream Amakusa Shirou has.

Because it sounds like the dream he had before.

"Wow. And people thought my dream was crazy and ridiculous..."

Amakusa Shirou was confused with what Shirou just said. "What do you mean by that?"

"Well...my dream as a child was to be a hero of justice."

This time, it was Amakusa Shirou's turn to be quiet.

After all, what kind of dream is to be a hero of justice? Even kids today wouldn't think of something like that.

After a few seconds of silence, Amakusa Shirou chucked at what Shirou said, making Shirou ask, "What's so funny?"

"Nothing," Amakusa Shirou said with a chuckle. "It's just that well...your dream sounds similar to mine. You said you wanted to be a hero of justice, and I wanted salvation for humanity. They both involve saving humans. Not to mention that you act like how I used to be before becoming a servant..."

"You mean when you try to save people during your time alive before becoming a servant?"

"You can say that."

"I see. Now that you mention it, what you did before your time as a servant was similar to what I did. Before I became a servant, I would help people whenever I can during my travels."

"Is that so?"

"Yeah."

Amakusa Shirou was silent for a moment before saying, "Then let me ask you this. Were there any regrets in the path you have chosen?"

Shirou gave him a resolute answer. "No. There weren't any regrets in the path I have chosen."

"I see..." Amakusa Shirou said before a silence occurred. As the silence occurred between the two, Amakusa Shirou thought, "Emiya Shirou...judging by the conversation we just had...he seems to be like me..."

"Um, is there something wrong?" Shirou asked, snapping Amakusa Shirou out of his thoughts.

"Hm? Oh, nothing. Anyways, it was fun having a chat with you Emiya Shirou," Amakusa Shirou replied with a smile on his face as he was getting out of the chair he was sitting on. "I'll be leaving now, so see you later."

"Yeah. See you later Amakusa Shirou."

Amakusa Shirou sighed. "You really don't want to call me by Kotomine, don't you?"

"Sorry, but the surname still haunts me."

"That's explainable. Anyways, see you."

"Bye."

"Bye."

And Amakusa Shirou left the cafeteria. As he was getting out of the cafeteria, he noticed a certain servant waiting for him.

"So, what took you so long?" Semiramis asked.

"Oh nothing. Let's just say...I met someone interesting," Amakusa Shirou replied.

"Really? How so?"

"Well...he reminds me of myself in a way and has the same name as me."

Semiramis let out a chuckle. "Is that so? Another servant that is like you and has the same name as you..."

Omake

Shirou was walking into Chaldea's cafeteria. As he came in, he noticed Amakusa Shirou eating. He then sat in front of him and said, "Hey Amakusa Shirou."

"Hm? Oh, hey Shirou," he said before he continued eating.

Shirou then sat down and immediately looked down at the dish Amakusa Shirou was eating. He then looked at Amakusa Shirou first, then the dish he was eating, then back to him.

And the dish he was eating was mapo tofu.

Which Kirei Kotomine loved.

"You want some?" Amakusa Shirou asked, noticing the attention to the dish he was eating.

"I'll pass," Shirou replied with a groan. As Amakusa Shirou continued eating his mapo tofu, Shirou thought, "Okay, I heard from Tohsaka that Kirei loves eating mapo tofu in general but is loving mapo tofu a thing in the Kotomine family?!"