When talking to people in Gensōkyō, keep your ears open and you might just hear a skirt breathing – though by that point it'd probably be too late...
And I don't think mimics really care what they're chomping on. So in this scenario, the local youkai too would probably be wary of them. They ought to be pretty high-up in power, right? At least with Dark Souls mimics ending up in Gensōkyō as a skirt instead of a chest.
