On the roof of the tallest skyscraper

You pace nervously on the small roof of the tallest skyscraper in the city. You look at your watch, five minutes until Rin said for Shinji to meet her here. You've asked Rider to conceal her presence as a Servant as much as she can; in an effort to have the element of surprise against Saber.

Right on queue, the stairwell door opens and out walks Shinji with Saber in tow. "Well-well-well! I'm glad you decided to become my thrall after all, Tohsaka!" Shinji screeches. You step out from behind the concrete stairwell. "Nobody is becoming anybody's thrall. Especially not yours!" you exclaim.

Shinji turns his head towards you with a smirk. "I don't recall inviting you to my victory party, Shirou Emiya." Saber turns to you with murderous intent. You've got Saber in perfect position for the surprise attack. Saber brings forth her blade, "Trace, on!" You exclaim, bringing forth Archer's, nay, your dual blades.

You have full faith in your ability to block Saber at least once. "Looks like you picked up a few new tricks. Too bad they don't stand a chance against Saber. You know if you get on your knees and beg like the dog you are, I'll let Saber kill you quickly." Shinji sneers.

"I'll never beg to someone like you!" You exclaim. Shinji's lips curl up into a wicked grin. "That's the spirit. Kill him, Saber. And make it painful."