She's also unambiguously a villain. Given she's apparently from one of the tabletop campaigns, we have no idea how bad she could actually be. We might be looking at one of the really bad "seduces men and then eats their livers" types for all we know.
I kind of extrapolated it since she seemed to be in the same vein as Russ. My bad then, she's a complete OC and we know nothing about her besides "villain".
I mean, Doof gets a red card, as do Wile E. Coyote, Norm Prime, and TECHNOR, to name a few. Villain isn't a particularly damning accusation.
Plus, we do know a couple of other things. Like her engaging in the pettiest crime on a regular basis, and her ability to interact with Janna on multiple occasions without harming her, which I think sets an upper bound on how outright malicious she could be.
Also, the liver eating is a kumiho thing, not a kitsune thing. She's probably going to have a loose notion of property rights, and the general trickster aesthetic covers a wide range of amusing to outright harmful behavior depending on her natural disposition and her Loyalty, but I don't think we need to worry about her feasting upon our flesh.
(Full disclosure, this is based on vaguely remembered weebshit, the kumiho SCP, and a quick verification read-through of the kitsune Wikipedia page. Throw in the influence from the Disney side of things, though, and I don't think she'll be an unreasonable pickup. Better than Wendy, up to you, but she's probably
fine for what she gives us.)