Chapter 6.41E question

"Well, this was going swimmingly. Unlike other recent encounters, Ryoka hadn’t had to introduce herself by outing Wiskeria as a vampire, and she hadn’t needed to save Wiskeria from a magical monster just to say hi. If she could avoid punching her within the first ten minutes of meeting her, Ryoka was golden."

When did Ryoka save someone from a magical monster just to say hi?