Varied ero-mangaka ぼっしぃ / Bosshi, or AskRay,whose works span everything from futanari to the very mainstream work you see here, has finally presided over the release of the ero-anime adaptation of his manga compilation 水着彼女 / Mizugi Kanojo.
Mainstream it might be, but it still manages plenty of hentai fetishism, chiefly in the realm of improbably small and tight sports swimwear.
The animation is passable, whilst the character designs seem to have lost something present in the manga. They are otherwise very faithful to the original manga.
Seiyuu work also seems only passable; all this combined gives it a slightly generic feel which is not present in the original manga.
Speaking of which, you can see just how the manga fares through all this below:
I’m sure you get the idea.