Ah, I should have put that together sooner.

[Corrin's name matches the one listed under Felicia's likes, after all, and she'd spoken to the other girl earlier. But Rin nods amiably, and after another moment points to Sakura Matou's profile.]

I recognize this girl. We don't have a close bond like you and your retainer; I only know her in passing, actually. But we attend the same school, and her older brother is in some of my classes.