User blog comment:B214/Talk About What You Want! 2/@comment-75.107.224.61-20140712004138/@comment-75.107.224.61-20140712023737

So far only a couple of special rule ratings games have been shown or the potential required participation of evil pieces. So there that may not be the case. That aside I think that Ravel has a deep (even if tsun-tsun) love/friendship with Koneko and also Gasper. I personally think if she was to see one of them in danger (or Issei) she would try to do something.