It's clearly a magic robe that can repair itself by simply being doused in mineral water, but where the whole set of clothing follows the "core" of the robe no matter where it goes.
Ahhh...
I want to play outside...Tha-...
That would be bad, you know?Why?"Why?," you ask...If someone were to see you, then you'd be exposed...Your appearance is so conspicuous...You're just as spineless as ever, aren't you?Then if I just do this, I'll be fine, right?!!That's even worse, isn't it?!* If Wo-class chan removes her hat(?), she becomes naked!