@VitaVitaARWell, Futakuchi-onna were originally human women who were beset by a curse or supernatural disease which transformed them into Youkai, so I would imagine they still have mental ties to their former human mentality, since they've been living under the guise as ones. i.e. gun=pew. After all, they are still human to an extent(kinda), though they could have probably attempted to disarm Anastasia if their hair wasn't holding food. And I'm aware Youkai aren't in Russia, but I was referring to non-human beings. Haven't actually researched Russian folklore, but the CS has me edging to do so XD.
Actually made a hiccup at one part, turns out Futakuchi-onna only eat through their rear mouth, and twice as much at that, which was probably all the more reason they wanted to seek haven in the ID.
I'll edit these little bits, and then it should be good?