these things

most of the tengu are depicted wearing shoes based on them in the touhous

and the thing about this is that it is specific characterization through fashion

because the thing about tengu-geta in reality is that it's much easier to walk than to stand still

they're more comfortable while in motion

so giving a character these weird shoes suggests someone who is always on the move

or someone who's willing to put a LOT of effort into looking cool

also I like Aya's weirdo flamingo squat crouch pose in SWR