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aika_granzchesta alice_carroll aria mizunashi_akari swimsuits

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Somehow, they look like they're from a Sci-Fi anime with those bikini lines and collars that give the impression of armor.
Not sure on armour, but certainly I did think it looked more like clothing than just swimsuit.
I thought they looked metal, like armor, as well. Almost like they're robots and their torso is just built to look like that.
technically, aria is sci-fi
spoiler
Ah, that explains it. I haven't seen or heard of the anime, and I haven't looked at the tags for this pic either, so I just assumed it wasn't about an anime at all.

Pretty nice how they appeal to the Sci-Fi genre with that. Those bikinis are actually starting to grow on me. (no pun intended :P)