3rd Person Pov

Artoria: Mordred, I-

Mordred: Silence! You have no right to talk to me! For now, I'm calling it a truce to destroy that monster. Hey, big guy, could you buy us some more time?

Alexander: If you're talking about me, I can buy you all 5 minutes, not a second more.

Artoria Lily: That's more than enough time, now go!

Alexander: You got it, young King of Knights!

Alexander then rushes towards the scene as he creates a reality marble using his Noble Phantasm as Gilles disappears, giving time for the other servants to talk on ideas. Irisviel places Y/N on the floor while Ereshkigal takes care of him. Kiritsugu from a far called Irisviel but this was picked up by Waver. He mentions that Artoria had a Anti-Fortress Noble Phantasm.

Musashi; If this is true, then why can't Artoria Lily do it?

Artoria Lily: Sorry, but Caliburn, my Noble Phantasm isn't as strong as my present self, Excalibur is.

Mordred: I can take it down too, my Clarent Blood Arthur just missed that little shit's head but to save that boy, it's whatever.

Diarmuid: Can that Noble Phantasm really defeat Caster in one blow?

Artoria: It can, Clarent Blood Arthur and Excalibur can. However, the weight of my sword and pride is the same. The wound from the first battle hasn't healed, do I cannot use it

Diarmuid; I see. But I can't forgive caster. I took a vow as a knight to never bow to evil.

Diarmuid then takes his second lance as he splits it in two, destroying his Noble Phantasm and thus, Artoria was able to heal her left hand and with that, Artoria was able to use her sword

Ishtar: It's beautiful...

Artoria Lily: Indeed it is...

Mordred: Hmph, nothing special when you've seen it multiple times over and over, it's just pathetic

Skadi: That's not nice

Mordred: You have no idea how much I hate Father.

The reality marble was conjured as one of the knights came out from the reality marble as Waver tells him to wait for his signal. Artoria was busy with Berserker as Diarmuid keeps the berserk knight busy as Gilgamesh helps out too. At sea, Kiritsugu releases a flare as Alexander releases the beast back at sea.

Alexander: That took way too long

Artoria stood in front of the beast as Gilgamesh watches in amazement. The blonde knight raised her sword as she absorbs all the energy from the living for one strike towards Gilles

Artoria: EXCALIBUR!!!

Artoria swings her sword down as it makes a path of light to destroy the monster within. Gilles went towards the light as he sees Jeanne D'Arc

Jeanne: Come, Gilles.

Gilles: (What is happening... to me?)

Gilles was destroyed permanently as the light died down. As Jeanne smiles

Jeanne: He's gone now, finally. You can rest, Y/N, your work was not in vain. Speaking of which, Artoria Lily, Mordred, if you're here, then you're going to be...

Artoria Lily: Yes, we are going to be Y/N-Sama's servants!

Everyone: (She's so pure like Y/N?! How can such beans exist in a world of pain?!)

Artoria: (If younger me married Y/N, does that mean I technically married Y/N as well, right?)

Kiritsugu: Irisviel, Irisviel, do you copy?

Irisviel: Yes, Kiritsugu.

Kiritsugu; News just dropped, there is another Berserker Class servant besides the one that we just fought. No, it isn't Jeanne's sister, she's an Avenger class. Ask her if she knows who it is

Irisviel: Understood. Jeanne?

Jeanne: Hm?

Irisviel: There's another Servant here, a second Berserker class servant, who are they?

Mordred: I know who she is.

Irisviel: You do?

Mordred: Yes, she's the reason why we are here. My mother, Morgan Le Fay, she's the whole reason why I was even born

Artoria Lily: Was that true?

Artoria: Yes, it is. I became psudeo-male thanks to Merlin's magecraft, which means I could now produce sperm. But this pregnancy was not consensual. I didn't want this to happen, but Morgan did. She secretly took my sperm and inserted it into her ovary, giving birth to Mordred

Musashi: That kinda sounds very wrong out of context. So Mordred here was a forced child?

Artoria: Yes. I never wanted him in the first place

Mordred: WHY YOU LITTLE SHIT!!

Ishtar: Calm down! You're going to cause another war!

Ishtar and Scathach held Mordred down as she screams at Artoria

Mordred: YOU ARE JUST LIKE BEFORE, AREN'T YOU FATHER?!?! YOU ARE JUST SOME BEAT UP OLD GEASER WHO DOESN'T CARE FOR HER CHILD! I DID WHAT YOU WANTED SO YOU COULD ACKNOWLEDGE ME BUT NO!!! I WAS THROWN AWAY LIKE DIRT AND YOU DIDN'T EVEN LOOKED SORRY WHEN YOU KILLED ME!!!

Serenity: Mordred-San... was killed by her father?

You: It's true... ah...

Irisviel: Y/N! You need to rest.

You: One copy of the Welsh text Ymddiddan Arthur a'r Eryr has the dying Arthur tell Guinevere that he struck Mordred nine times with Caledfwlch, a copy of Excalibur which was the lance variant.

Artoria: ...

Mordred: Now you all know! I'm fine now, let me go.

You: Let her go.

Scathach and Ishtar released Mordred as she gets up and carries Y/N on her back

Mordred: I have no intention on helping you, father, I only plan on winning this war for my own intentions and Master's nothing more.

Artoria: I understand. For now, let us-

Mordred: Don't order me around as if you're still king, father! This isn't Great Britain anymore so stop acting like one!

Time skip

Kiritsugu then told Irisviel and Artoria to head to a place where Lancer and his master was, so Y/N and the others followed with Y/N on Mordred's back. By the time they arrived, Diarmuid saw multiple servants surrounding him as well as Artoria

Diarmuid: Y/N, you alright?

You: Yeah, too bad we can't fight for now, we're low on energy.

Diarmuid then looks towards Artoria as she knew what to do. She turns into her battle form as the 2 began a slow battle, Saber versus Lancer.

Jalter: Should we interfere?

You: Let them have this battle until the end. Those 2 deserve it

Diarmuid: I am the first spear of the Knights of Fianna, Diarmuid Ua Duibhne! Prepare to fight!

Artoria: Excellent, I, King of Britain, Artoria Pendragon, accept your challenge! Bring it on!

The 2 then continued their battle as Kiritsugu was with Lancer's master, holding his wife hostage as he made a deal with him, which was to destroy the seal between him and Diarmuid. Which he did, however, there was another condition to breaking the seal, suicide

Diarmuid: Ah... ah...

You: Diarmuid!!

Scathach: What... is the meaning of this?!

Diarmuid stabbed himself with his spear as he was shocked too. His master came out and so did Kiritsugu.

Diarmuid: You, despicable bunch... You're willing to do anything to obtain the grail?! You've taken away my one and only wish! Do you have any shame?! I will never forgive all of you! Every single one of you who belittled the Knight's honour for personal gains! I will use my blood to curse your dreams! Although...

Diarmuid looks towards Y/N

Diarmuid: Only one of you is worthy of the grail! Y/N, I leave my Noble Phantasm to you, take it!

Diarmuid's Noble Phantasm appeared which shocked everyone as it appeared next to Y/N

Diarmuid: All of you... don't deserve the grail! All of your wishes will be tarnished! You'll remember me when you're thrown into the fiery pit of hell!!

With that, Diarmuid disappears as Maiya finished the job, killing Lancer's master and his wife. Artoria walks forward to finish the job but Y/N gets off Mordred, stopping Artoria and giving Lancer's master and his wife a single blow to the head with Diarmuid's spear

You: Has it all come to this...? I thought that you wanted a world where no one would die... I believed in everything... after seeing this... I can no longer trust you as my father!

Mordred: (Shots fired, the kid's got guts, I like that)

You: Explain to me, Kiritsugu Emiya, what is your true purpose in this war! Was I just a tool for you?! Because of my mana, I could summon more and more servants for you!!

Kiritsugu: They were acting above others all for the sake of honour and glory

You: DON'T DODGE THE QUESTION!!

Kiritsugu explains that regardless if people are hurt, as long as the smaller amount is finished off, the better before walking away. Y/N holds onto Diarmuid's spear tightly as he sees what his father truly is.

Irisviel: Y/N... he's gone right?

You: ... Mom?

Irisviel falls as Y/N catches her before she could even hit the ground.

You: What's the wrong?!

Artoria: Y/N, let me take her, you should all go home first

You: Right... thank you, Artoria. But first. Mordred, Artoria Lily, lead me to Morgan

Artoria: !!

Mordred: You got it, let's go!

Somewhere else...

Morgan: So... he's decided to come to me?

Morgan: I can't wait for my future husband to arrive, fufu~