Momo: "We're not. You just haven't seen how often we go nude!"
Nana: "To be clear, we do all wear clothes most of the time. Assuming you mean around the island, and not at home or on the beach?"
Momo: "For real, we wear clothes because we like them. Nice clothes feel nice! And they look cute! Who doesn't like feeling nice and looking cute?"
Nana: "Of course, always without underwear that is. Unless we have plans for the underwear..."

Fuyu: "Almost everybody on the island feels the same as those two. There are a few dedicated nudists around, but mostly, people here just like wearing at least one or two pieces of clothing for the look and feel most of the time. I wear clothes all the time because I actually prefer some decency... but around here, that makes me the weird one. Haru and Yuki are usually clothed as well because of me, but, well... part of that deal was that I'd stop pressuring them to wear underwear, and for the rules to be off at home, so..."