Anyone else here is more than welcome to add the rest of the characters. Every female who's a somebody (and is freaking beautiful to boot) is right here. At least most of them.

This is Heaven, plain and simple. <3

BOOBS FOR THE BOOB GOD! LOLIS FOR THE LOLI THRONE!

What the? Quattro will change? Is this official?

Or maybe the artist just felt like having all the Nanohaverse in swimsuits.

Something I'm NOT going to complain to, mind you.

The little girl's name next to Signum is Miura Rinaldi, a strike artist who is learning under the Yagami Family :33

So, if anyone knows how to tag, please do...

Sho said:
Or maybe the artist just felt like having all the Nanohaverse in swimsuits.

Something I'm NOT going to complain to, mind you.

Good point. The text below the pic said heroines so I guess that made me curious.

Tagged and annotated the ones I could figure out. No idea about the remaining six.

Upper left corner is Saint Kaiser Olivie, not Vivio. The back of the head above Victoria is Seiglinde. I don't think Harii's friends have names yet. Two missing in the upper right corner are Shario Finieno and Quint Nakajima.

Magus said:
Tagged and annotated the ones I could figure out. No idea about the remaining six.

If I can make a guess, those six girls may be the contestants for the current arc in Vivid.