After seeing the destruction that happened before her eyes, which destroyed almost the entire island they were standing on, Ritsuka could only stare at the young boy standing in front of her, scratching his head with a sheepish look, with a dumbfounded expression which was shared by her Servants except for Artoria who was hugging her brother tightly and showed nothing but content on her face.

"Like I said before, I'm really sorry for involving you in this mess. I'll make sure to punish that idiot over there later." Kay said as he glanced at a certain body that was buried head first into the sand, the only visible part being the lower half from the waist to the feet that were suspended in the air.

"Mhmhmmh!"

"I'm talking to them, Merlin, so shut up for a moment." Kay said, slapping the body's butt, to their surprise. But they were more shocked by the fact that they heard a moan coming from the woman.

"...Sir Kay and Merlin-sama... Eh?..."

"Hmm? Can I ask something?" Mash said as she raised a hand, earning a nod from Kay who smiled at her.

"Yes, what is it?"

"Are you really Sir Kay, the same Sir Kay from the Round Table?"

"Yes, I am. However, let's say that my circumstances are a bit... special."

"Special how?"

"I believe that one of you already figured it out." Kay said as he turned to Bedivere who nodded his head, a look of comprehension displayed on his face.

"Yes. Just like my king and I, you and... Lady Merlin over here are from a parallel world, a world where events played differently, am I correct?"

"You are, Bedivere." Kay said before he placed his hand over Bedivere's prosthetic right arm. "Just like how you came from a timeline where you didn't give back Excalibur to Vivian, we came from a timeline where... many things diverted from others."

"So you even know about that..."

"Yes, I have seen many things, including your showdown with that goddess. It must have been harsh for you, so let me say this. Even though I'm not the same Kay you have spent your days as a knight with, I'm proud of you, Bedivere."

Hearing those words, Bedivere looked down with his body shaking, a little moved by Kay's words. Even though he wasn't the same person as his friend, it still touched him emotionally. And after a few moments, he raised up his face and looked straight into Kay's eyes, a smile on his face.

"I don't deserve your praise... but thank you, I appreciate your words."

"But Sir Kay, why are you and... Merlin-sama here in this timeline? And why did she create a Singularity?"

"I don't know if your Merlin can do it, but my Merlin can cross dimensions and visit parallel worlds as she pleases so I suppose it was either by pure chance that we ended up in this world, or that she planned something by coming here. What? I don't know." Kay answered Gareth before he pinched Merlin's ass without looking at her, making her yelp while Ritsuka and the others could only look in confusion at the sight.

'Just what is their relationship?' was the common thought that crossed all of their minds except Artoria's.

"And for the Singularity itself, I don't really know. I'm sure that it was for a stupid reason like wanting to play around or creating some problems for me. I swear, I wonder why she thought it would be a funny idea to kidnap me while I was sleeping before dropping me in the middle of a deserted island filled with monsters without saying anything. Honestly, she's such a pain in the ass."

"Ahaha... It looks like that no matter the form or gender, Merlin-sama will be Merlin-sama..." Gareth said, scratching her cheeks while Bedivere could only nod sagely at her words.

"In any case, I'll take that idiot back home with me so I guess you can consider this case closed."

"Eh?! You're leaving already?! But we barely got to see each other!" Artoria shouted as she jumped on Kay and grabbed onto his body with hers, making Ritsuka think that she looked for a koala for an instant. "Didn't you say that you'll listen to any of my requests?"

"Yes, I did say that... Oh yeah, how about I give you this instead?"

As he said that, a small crystal appeared in his hand before he threw it at Mash who awkwardly received it with her two hands.

"What is this, Sir Kay?"

"It's... a little treasure of mine. I'm not sure if it will work but can you try summoning me with that crystal as your catalyst?"

"You mean, summoning you as a Servant?"

"Yeah. As far as I know, the throne of heroes is a place that exists outside of both the World and the time axis so perhaps that there is a copy of my future self recorded in it. If it's possible, then I want you to try and summon him. I'm sure that he'll be happy to be of help."

"Understood, we'll give it a try once we're back at our base."

"Great. I'm sorry, Artoria, but I hope it will suffice as an apology."

"I'm not satisfied… but if it means that I get to travel the world one more time with you, even if we're both Servants, then I'll forgive you." Artoria said as she reluctantly let go of her brother who gave her a smile and rubbed her head one last time before he walked next to Merlin's body and grabbed one of her legs.

"Alright, time to go home now." He then pulled her body out of the sand with the succubus coughing from the sudden action.

"Hey, you could have done it a little more gently, no? I nearly swallowed some sand because of you."

"Is that so?" Without changing his expression, he threw Merlin in the air which made her yelp as she fell down. But then, she blinked in surprise when she felt a pair of arms catch her up. She looked up to see Kay smiling at her, carrying her in his arms.

"Shall we go?" He asked her and she could only nod as nothing could come out of her mouth. And as she snapped her fingers, creating a portal out of thin air, Kay turned to Ritsuka and the others one last time.

"It's been a pleasure to meet you, Fujimaru Ritsuka, Mash Kyrielight. I'm sure that the path you are taking is a harsh one with many trials ahead, but I believe that you will manage to overcome them."

"Thank you for the words, Kay!"

"We'll do our best!"

"That's what I like to hear. Artoria, Bedivere, Gareth, I don't think I need to say it but look after both of them. Well then, goodbye and my best wishes for your journey!"

And as they watched the pair enter the portal which quickly closed behind them, Ritsuka let out a little breath.

"Well, that was a crazy adventure, that's for sure. Let's go back to our home as well. I'm really tired right now." She said as she stretched her body with her Servants all nodding with her. But before they got rayshifted back by the Chaldea staff, she looked at the crystal that was in her hand.

"And we got a little request to fulfill too… I hope we manage to summon him…"

True Name: Kay Lily

This is Kay from a time before he began his journey as Arthur's aide in a distant timeline. Known for his huge talents and feats on a battlefield despite his young age, he was feared by both his enemies and allies for his power said to be the ability to control the stars themselves. But behind the prodigy that he is, there is nothing but a simple man who would rather live in peace with his family.

Class: Assassin

Rank: SR Cost: 12

ATK: 1,576/9,456 HP: 1,692/10,580

Lv.100 Grail ATK: 11,449 Lv.100 Grail HP: 12,828

Lv.120 Grail ATK: 13,443 Lv.120 Grail HP: 15,077

Attribute: Earth

Star Absorption: 102 Star Generation: 25.6%

NP Charge ATK: 1.06% NP Charge DEF: 4%

Death Rate: 0% Alignments: True・Neutral

Gender: Male

Basic Traits: Hominidae Servant, Humanoid, Servant, Weak to Enuma Elish, Riding, Seven Knights Servant, Round Table Knight, Brynhildr's Beloved, Child Servant

#Stats#

Strength: B Endurance: C

Agility: B Mana: C

Luck: E NP: C

#Passive Skills#

Presence Concealment (A): Increases own critical star generation rate by 10.5%.

Words have been told that Kay was as talented in all forms of covert activity, be it larceny, trespassing, theft, espionage and assassination. It was said that he could never be seen through any sort of magic or that he could naturally disappear into any crowd, no matter how sparse it was, much to the surprise of his pursuers.

Independent Action (A): Increases own critical damage by 10%.

Said to be loved by the World by a certain Magus, Kay is able to draw mana from the planet's leylines to replenish himself, allowing him to act without the aid of a Master.

Riding (A): Increases own Quick performance by 11%.

Talented in mounting since his young age. Kay can mount any kind of ride, but can't mount the dragon kind since he never encountered one in his youth. According to the boy's words, his favorite ride was Merlin.

Gift from the Stars (A): Increases critical damage of all allies with the Artoria Face trait by 5% while self in the field.

Grants self Taunt status. [Demerit] (500% Chance to draw the attention of all enemies with the Artoria Face trait to self for 99 turns.)

Increases own damage taken by 200 from all enemies with the Artoria Face trait. [Demerit]

Ever since his young age, the boy who resonated with the stars had his fate deeply linked with that of a future King of knight and a Witch because of the bad influence of a certain Succubus, leading him to become the catalyst for a great chance in Britain's history, whether for good or worse.

#Active Skills#

Sword of the Stars (A): Double the number of hits when normal attacking for 1 turn.

Increases own damage when normal attacking for 1 turn.

Damage : 0%/3%/6%/9%/12%/15%/18%/21%/24%/30%

A Reward for You (EX): Increases one Artoria Face ally's attack for 3 turns.

Increases their critical star absorption for 3 turns.

Increases their critical damage for 1 turn.

Attack : 20%/21%/22%/23%/24%/25%/26%/27%/28%/30%

Absorption : 300%/330%/360%/390%/420%/450%/480%/510%/540%/600%

Crit Damage : 50%/55%/60%/65%/70%/75%/80%/85%/90%/100%

Divine Lunch (EX): Recovers party's HP by 1000.

Increases their Max HP for 3 turns.

Charges their NP gauge by 20%.

Max HP : 1000/1100/1200/1300/1400/1500/1600/1700/1800/2000

#Noble Phantasm#

"From the sea of stars, I call forth the astral blades, Astrorum Gladius! With this… it's over!"

Summon a massive rain of spirit blades from his collection, wiping out all enemies in front with an endlessly spinning storm of swords before unleashing a beam of light using two copies of Caliburn on them, breaking them upon use.

Type: Quick Base Damage: x1.5

Rank: C Noble Phantasm Type: Anti-Army

Hits: 10 Per Hit Percentage: 1%, 3%, 3%, 5%, 7%, 9%, 11%, 13%, 15%, 33%

#Dialogue#

Summoned: Hi, my name is Kay but you can call me Kay Lily. I'm just a common variety Assassin, so don't expect much from me.

Level Up: Let's take it easy.

1st Ascension: Should I start getting serious?

Kay said, summoning two copies of Caliburn in his hands*

2nd Ascension: Hmm? Change clothes? I don't feel like it right now, so maybe next time.

3rd Ascension: Alright, what do you think, Master? Isn't my cloak cool? Hey, how about I make one for you? We could match cloaks.

Kay said, showing off his black armor and white cape*

4th Ascension: So, I've reached the limit of this vessel, huh... Well, it doesn't matter. Worry not, Master, I'll show you from now on everything I could do when I was this age, so prepare yourself!

Kay said, giving a small but warm smile at Master with a starry night behind him*

Battle Start 1: Moving out.

Battle Start 2: Roger.

Battle Start 3: I'll follow your lead.

Skill 1: Don't disappoint me.

Skill 2: Here, I'll give you a head pat.

Skill 3: Alright, it's dinner time guys.

Attack Selected 1: Understood.

Attack Selected 2: Leave it to me!

Attack Selected 3: Time to do this!

Noble Phantasm Selected 1: Time to get serious...

Noble Phantasm Selected 2: These spirit swords aren't just for show.

Attack 1: Too slow!

Attack 2: Zea!

Attack 3: Fall!

Extra Attack: Shine, Caliburn!

Noble Phantasm 1: From the sea of stars, I call forth the astral blades, Astrorum Gladius! With this… it's over!

Noble Phantasm 2: Come forth like shooting stars, Astrorum Gladius! Followed by... two Caliburn blasts!

Damage from Noble Phantasm 1: What the--!?

Damage from Noble Phantasm 2: Guh--!? Something like this--!?

Regular Damage 1: Tch!

Regular Damage 2: Just a flesh wound!

Defeated 1: Damn it, I was too careless.

Defeated 2: Artoria... Merlin... sorry...

Battle Finish 1: Well, what else did you expect?

Battle Finish 2: Is that all you've got?

#My Room#

Bond Lvl 1: I wonder why I was summoned in this younger form. Compared to when I was an adult, I'm basically nothing right now. Well, I'll have to do what I can, I suppose.

Bond Lvl 2: You have such a large burden on your shoulders, just like her... Hmm, don't worry about it, I was just talking to myself. Is there something you want to eat, Master? I'll take any request you have.

Bond Lvl 3: Why could I be summoned as an Assassin when I was trained to become a knight? Well, let's just say that I was really good at sneaking around. I don't remember how many bandit camps I've taken down without waking a single person...

Bond Lvl 4: Back then, rather than being a knight and spending my days fighting for my country, I'd rather be just a big brother, taking care of my little sibling. But unfortunately, fate wasn't that kind of us.

Bond Lvl 5: To be honest, I don't want you to continue walking on this journey. The path you are walking down is a dangerous and treacherous one, even more than the one I undertook in the past with my sibling. But knowing you, I doubt that you would abandon everything midway because you're too kind to a fault, so let me tell you this. Even if the World would become your enemy, until this body and soul break apart, I shall stay by your side and protect you from all that comes after your life. That's a promise.

Dialogue 1: You're going out? I can come with you if you want.

Dialogue 2: Our relation as a Master and Servant? What we are... will all depend on you, I suppose. If you want us to be in a professional relationship with you giving me orders to follow and execute, I won't mind. But if you want to be more, be my guest. Although, I would be happy if you decide the latter.

Dialogue 3: You should take the time to rest, Master. If you faint from exhaustion, it will be a problem for everyone. Here, I'll lend you my lap. I used to do this for Artoria all the time when we were young.

Dialogue 4 (Artoria Pendragon [Lily]): It's nice to see you, Artoria. It makes me happy to see you in good shape...Hm? A hug? Sure, I don't mind. You sure are spoiled as ever, aren't you.

Dialogue 5 (Lady Avalon): Merlin, a total pain in the ass who keeps giving me problems... But still, I'm happy to see that she's among us. Just don't tell her I just said that or she'll get a big head.

Dialogue 6 (Other Artoria Servants): So, this is what Artoria could have become in the future... I might share the same identity as her foster brother but we're not the same being, so we may as well be strangers. However, I wonder why they keep glaring at my sister every time they see us talking to each other. Did we do something wrong?

Dialogue 7 (Other Artoria Face Servants): It's weird to see someone walking around with my sister's face, even though they aren't related by blood or even from a different country. Well, that's something I have to get used to. Although, I wonder why they kept talking to me, not that I mind.

Dialogue 8 (Arthur Pendragon): Arthur Pendragon, the one who could have become my little brother... I wonder what my life could have been if it was indeed him in Artoria's place.

Something you Like: Something I like... stargazing, I guess. I used to do that with Artoria and Merlin when I was young, so yeah, I like it.

Something you Hate: Bugs.

About the Holy Grail: I don't need it. I mean, I don't have any wishes I can't achieve on my own. Shutting Merlin up? That's... something I can do easily now, so you don't have to worry about it.

During an Event: Master, a festival has started... Do you have enough golden apples in stock? Because you'll need them if you want to get all the free items!

Birthday: Happy birthday! I wish you a wonderful year until your next birthday. Here, it's not much but I made a cake for you. I hope you like it.