[ somehow, it's kind of alarming that a necklace of ugly small bananas is worse than a Sketchyass Robe™... and worst of all would be pruny skin, apparently, so saving kashuu from that fate is the least he can do, but it's mostly because he doesn't think its pleasant to, well, exist in soggy clothes. ]

Sure, why not? And, well... I don't have anything in mind, but if I come up with a favor later on, I'll ask you for one, okay?

[ though it'll probably just be something simple, like "buy me something sweet", since tsurumaru doesn't put too much weight on favors. ]

If you really don't want to wear the robe, you can hang out in the changing room and toss your clothes over the door.

[ it's kind of an overly complicated plan, but if kashuu really doesn't want to wear it, then that's the best he's got!! especially since kashuu seems pretty displeased with the idea of the robe, so he doesn't want to force him into it?! ]