Rider
Rider couldn't help but notice his expression stiffen up as she asked her question. It was obvious that this line of questioning made him a little uncomfortable, and she didn't think it would be a good idea to press much further. Nevertheless, she listened as he explained the reasons for the demons being released. As she could have probably guessed, it mostly boiled down to a thirst for power.
"Hmm, so they want power, basically? I should have guessed", she replied with a sigh, before addressing his question.
"As for how I ended up with my master, it's difficult to explain. But, in simple terms, the version of her from my home world summoned me years ago to fight for her in a war between servants like myself. After the war, she offered to maintain my contract with her, and I gladly accepted. She remained as my master and friend for years, until her sister messed up an experiment and sent me to this world, where I met my current master. Her past was similar to that of my original master, but her version of me had been left behind when she was pulled here, so I felt an affinity for her and agreed to contract with her."
As Rider was finishing up explaining her past, she vaguely noticed another person walk in and take the seat next to them. Oddly, she seemed to have two unusual-looking animals with her. Rider paid little attention until she heard the woman begin to mumble in a very familiar voice.
Sakura? she thought, turning to look at the woman.
And, sure enough, there, sitting at the table was Sakura, albeit a rather unusual-looking one, with a green streak in her hair and, seemingly, her natural blue eyes rather than the Matou purple. And, even more weirdly, there were two strange animals that Rider had never seen before, one flying next to her like an oversized insect.
"Sakura?" she said, sounding somewhat confused.
Sakura and Shirou
Sakura and Shirou followed after Irisviel, uncertain what her plan was, but sure that she was just trying to protect them. As they did so, though, they heard a gunshot ring out in the distance.
"What was that?" Shirou asked, concerned.