Resized to 58% of original (view original)
![artoria pendragon, fujimaru ritsuka, artoria caster, fujimaru ritsuka, and artoria caster (fate and 1 more) drawn by shintyoi2](https://cdn.donmai.us/sample/ed/9b/sample-ed9b5c137d8eaeb11de83b06ec77b77c.jpg)
Artist's commentary
"Master" and "Servant".
Based on that one LB6 cutscene where Oberon suggests that Castoria have Ritsuka pretend to be her pet and she has a very interesting reaction to it.
Commission done by @/shintyoi2, thank you!