Barefoot might be an improvement over shoes, in this instance. Kurisu is sure there's a reasonable explanation for why the sensation of wet, squishy socks and shoes is so utterly terrible to the human brain, but she doesn't know it, and even if she did, she doubts it would do much to comfort her this time.

And that's just part one of the list of problems she's currently having. Not mentioning the smell. Or the filthiness. Or the fact that she's stuck wearing these godawful clothes. She's hardly even paying attention to where she's going, as long as it's not here.

Of course, the sound of someone yelling at her and a sword being drawn snaps her to attention.

"H-hold on a second! I'm not trying to sneak up on you!" A somewhat strained voice comes from somewhere beyond the bushes. Here's the part where she'd appear, except her feet aren't complying. There's a sucking noise as the mud keeps her shoes firmly where they are. "--I'm just... stuck!"