Explore Lulukoko, Tsukuyusa, and Westown in this multi-cultural farming game for Nintendo 3DS. [ Game Guide ] JP release = Jun 2016. NA release = Feb 2017. EU release = Oct 2017.
I think if you've taken a bath recently the message won't crop up, but yeah - it doesn't actually mean much of anything. Just poking you to use a less-than-useful feature.