Unfortunately is something she can't say it, I think kanon is the one who going to "save" saki from her. (Cliche, yes, but is the one thing I can think about).
I have two hypotheses for this:
1. She's Marin's sister's assistant.
2. She must have joined as an investigator/police officer to try and find out about the murders that occurred; Burger will bring her in at some point.
I didn't know this belonged to manga team Kirara, and even worse, how did they let this happen? Does the author have compromising photos of her editor?