I'm autistic and I dont like using servants without meeting them in the story first, this would be fine... if I were not a latelet

I've rolled a bunch of cutes here and there over the past year, and I did make 1 exception for FGA+castoria so I can farm shit

The problem is, some servants arent part of the story, I think they were from old events from years ago, that they won't rerun, what do friends?