The Shadow Servants quickly overwhelm the group, forming an unusual allience in order to survive.

"Master, look out!" - Salter said as she blocked an attack from Shadow Lancelot.

Shadow Diarmuid jumped against Medea, but she dodged the attack before blasting him with fire, letting Medusa get a clean hit on the enemy with her chains.

From behind them, Shadow Iskandar attacked using his sword and managed to injure Medusa in the arm before being launched back because of Medea's spells.

"Just three of them, that's managable, we can handle this" - Ritsuka said - "Caster, I know we just tried to kill you but we could really use your help right now" -

"Alright, until we get rid of them, I'll aid you" - Medea answered while blasting Shadow Diarmuid away with ice.

Shadow Iskandar and Lancelot launched themselves against Salter, who dodged the attacks before stabbing the Shadow Rider in the chest using her Excalibur Morgan. After that, she unleashed a powerful Mana Burst which destroyed completly her enemies' body.

Shadow Lancelot tried to attack her, but was intercepted by Medusa, who kicked the black knight in the face before reuniting with Salter.

"Good job with the other" -

"Not enough, we still have two left" - Salter said while preparing her sword - "This one is mine, help the Caster with the other" -

"Got it" -

Salter and Lancelot crossed swords, creating a powerfuk shockwave that destroyed part of the temple in which they were fighting before the Shadow Servant kicked Salter far away from him.

"You're one of my knights, that's the reason i decided to fight against you, but I'm not going to give you any mercy" - Salter said as she prepared Excalibur Morgan - "Make this easier for the both of us and die alredy!" -

"ARTHUUUUUUUUR!" - the Shadow Servant screamed as he charged against Salter, who blocked the attack with her sword before returning it with a powerful Mana Burst-powered slash that sent Lancelot flying out of the temple's grounds. He was defeated, but not dead yet.

She was about to rush and kill the Servant, but was stopped when Medusa came suddenly flying and landed right at her side. Turns out, Shadow Diarmuid was being harder to defeat than Lancelot was.

"Master, give me more mana, I'll end this here and now" - Salter said as she prepared to use her Noble Phantasm.

"Fine then, finish them Salter" -

Using another Command Seal, Ritsuka gave Salter enough power to deploy a fully charged Excalibur Morgan on the remaining Shadow Servant, but before the explosion could conect, the hit was blocked by a red beam of light, crashing both mid air with no clear winner.

"That's... That's Clarent Blood Arthur" - Ritsuka said, as he immediatly recognized the Noble Phantasm - "So they also have a Mordred..." -

After the smoke from both beams cleared, new Shadow Servants were now alongside Diarmuid, with them being Mordred, Fionn, Tristan, Nitocris and Lancelot, returning adter being shot outside by Salter.

"Where are they coming from? There weren't any Shadow Servants close when the fight started" - Ritsuka said as he observed the enemies.

"They materialized during the fight Ritsuka Kun, whoever has the Holy Grail that is creating this Singularity is creating it. Run now, they're just going to keep showing up and they're going to overwhelm you" - Da Vinci advised Ritsuka.

"Fine then. Everyone, we're retreating for now" -

The Chaldeans started to make a run outside the temple, but the Shadow Servants for some reason didn't chased them outside, as they seemed to only be interested in the location itself and not so much the Servants and Masters. Once outside, Ritsuka told Rin what happened inside.

"More Servants showed up? How can that be? A Holy Grail War only allows for 7 Servants to be summoned, and it's alredy weird enough that you also have one. Now you're trying to tell me that 7 more showed up out of nowhere!?" -

"I know it's hard to explain but just trust me on this. Caster, where's your Master? I need to speak with him or her" - Ritsuka said, trying to not reveal the fact that he alredy knew who was her Master.

"He's... Follow me, I'll show you where he is" - Medea didn't wanted to ally herself with anyone for the moment, but the situation was something far beyond her control, so this was the best right now - "Assassin, follow us" -

Medea teleported everyone to the school, where her Master could be found. Soichirou Kuzuki.

"Master, I have some news and... Guests for the moment" - Medea said to Kuzuki as he turned around, seeing Ritsuka, Rin and the Servants.

"Who are they Caster?" - Kuzuki asked.

"Nice to meet you, my name is Ritsuka Fujimaru, the Master of Rider and Alter. She's Rin Tohsaka, Master of Archer" -

"I know him Ritsuka, he's a professor here at the Academy" -

"Well then, that saves us some presentations" -

"Why are you with my Servant exacly?" -

"Something happened. We came to the temple with the mission of taking down Caster, but we were surrounder by Servants similar to shadows and were forced to escape from there as fast as we could" - Rin explained the situation before things got ugly for them.

"Servants... Shadows? Caster, is this true?" -

"Yes Master, we thought we could handle the few that showed up at first but more appeared and we couldn't handle that many. They took over the temple" -

"We mean no harm, we want to form an allience in fact with you, Caster and Assassin, at least to solve the problem of the Servants that started to show up out of nowhere" - Ritsuka said, stepping to the front - "What do you say?" -

Kuzuki started at him for quite some time before finally speaking again.

"We'll need to find somwehere new to live if the temple was overrun. Caster, keep an eye on them, make sure they don't try to do anything weird" -

"Understood Master" -

/1 hour later/

Ritsuka, Rin and now Kuzuki returned to the Tohsaka mansion to rest for the night. While Rin wasn't very happy about the current allience with Kuzuki, Caster and Assassin, if they wanted to get to the bottom of what this strange Servants were, they'd need all the help they could get.

Rin was now asleep and Kuzuki downstairs with Caster, which allowed Ritsuka some privacy in another room of the place. He needed to talk with Chaldea and get answers.

"Those Servants definitly come from the Grail of this Singularity. Whoever has it clearly knew that the temple was filled with mana, and they want it" - Da Vinci said.

"Any clue on who could have it?" -

"Holmes has a list of suspects: The priest Kotomine Kirei and the leader of the Matou's, Zouken, are the first that come to mind. Investigate both of them as soon as you have the chance" -

"Understood" -

"Before you go, Ritsuka Kun, I think is better if before that, you go with the Masters of Saber, Rider and Berseker, convincing them of aiding you will make the journey a whole lot easier" -

"What about Cú? I know his Master is..." -

"First, confirm he doesn't have the Grail, then you can start thinking of making a team with him" -

"Copy that, good night Da Vinci" -

"Good night Ritsuka Kun" -