Fate Unlimited Destinies

by MichaelXClaire1996

Fate/Stay Night X Fate/Prototype X Fate/Apocrypha X Fate/Grand Order. While trying to rescue Saber, Rin gets pulled into a different world and completely different war. The only way home is to participate in the Greater Grail War. However, this war isn't like the rest with more servants and masters and something even darker that's determined to destroy them all. Male King Arthur!

1. Prolouge

PROLOUGE

Rin glared at the black cloaked figure in front of her; this was the worse case possible scenerio that she could have ever faced; she never thought that Archer would betray her and join forces with Caster, or that Saber's contract with Shirou would be nullified by Caster's magic. Right now, things looked extremely bad for the two of them; with Saber caged in a magic circle and having to face both Caster and her master, winning seemed almost impossible.

"Rin..." Shirou whispered quietly to her, barely taking his eyes off the servant and master in front of them. "Here's the plan, I'll distract Caster and Souichirou, you get Saber."

Rin glared irritably at the red haired boy at her side, "What kind of plan is that?! How do you possibly plan on taking them both on yourself?"

"Do you see any other option?" Shirou snapped back, already starting to form blades in his hands. "This is the only way."

She hated to admit it, but at the moment she had no other plan, Shirou's plan was the only thing that they had; no matter how much she didn't like it. "On the count of three?"

Shirou nodded wordlessly, beginning the count down. "One... two... THREE!" On three the both sprinted forwards, Shirou heading towards Souichirou as Rin made her way towards the magic circle holding Saber.

Of course, no plan that they made was ever that easy, Shirou only got Souichirou to attack him while Rin had to deal with Caster, dodging the burst of energy that the cloaked woman threw at her, all the while laughing at how hopeless Rin's attempts where.

I hate this. Rin thought as she pulled some gems out and throwing them at Caster; which somehow, by luck if nothing else hit the black mage full on the chest and sending her flying into the wall.

Now was her chance, Rin dashed for the magical circle and Saber, before something stopped her dead cold. Looking down, Rin saw an unfamiliar magic circle glowing around her, pure energy practically radiating from it.

"What the...?" Rin demanded just as the ring flashed with brilliant white light, the last thing she heard was Shirou and Saber screaming her name before nothing.