Rider
The last few months had been a mixture of happy and sad moments for Rider. On the good side, her new master had married Shirou in a private ceremony and, as much as Rider would have liked to have been there for their happy moment, she was overjoyed for her master. And, even better, Sakura was now pregnant with Shirou's child. Rider was so happy for her when she heard the news.
On the bad side, though, there had been a tearful farewell for her former master. Sure, they were now safely back at home, but Rider knew that she would never again see the family she had lived with for the past thirty years. And she also knew that Kiyoshi and the rest of the children would surely miss her, just as she would miss them. It had been a difficult decision for her to abandon her former master but, ultimately, she knew they needed to leave, for the sake of Kiyoshi, and she knew that she needed to stay, for the sake of her new master. This Sakura could simply not cope with her leaving, whereas she knew her former master could survive without her.
Now, though, she was following Sakura, watching her from a safe distance as she met with a man called "Boss", apparently some kind of mobster. Rider, still in spirit form, was floating up near the ceiling a little way off to the side of their meeting. At first, things had been civil, but they had rapidly begun to sour, the man apparently attempting to threaten Sakura. Seeing the signs that something might go wrong, Rider tensed up and moved a little closer, preparing to materialise and strike if necessary. Seeing the tension rise as Sakura began to walk away, Rider quickly materialised, clinging to the ceiling for a moment until she noticed the man reach his hand towards Sakura's back.
Instantly, Rider reached, launching her nail straight for the man's wrist, intending to pin it to the table, an apoleptic look on her face. Then, she jumped down towards him from the ceiling, intending to push him down and trap him, allowing her to deal with him at her leisure.
Sakura, should I kill him quickly, or do you want me to torture him first? she said over their mental link, obviously extremely angry at the man for daring to lay a hand on her master, especially in her current state.