> Keijo
But in terms of costumes they just wear swimsuites, which is no different from what one can see in any anime which has a beach episode. And in terms of casualness, having boobs and asses thrown in my face doesn't at all come across as casual to me. Even those usual beach episodes seem closer to casual erotic I'm looking for than this.

> Brave Witches
I'm certainly checking it out once it's over, as I'm not keen on watching ongoings.

> Flip Flappers
Looking at the trailer doesn't seem to have much of that. I think there might have been a glimpse of a costume on the redhaired girl which might suggest lack of panties, but it wasn't even noticable until you pause it, and it also didn't look like she would wear this costume most of the time. Also the weird gradient leg makes it hard to distinguish where clothing ends and body starts and just looks weird. But it still looks very fun, the redahaired girl also reminds me of Nono from Diebuster, so I'm going to check it out once it's over too.

Thanks for suggestions!