I guess they never got around to scanlating volume 3? Too bad...anyway, this mangaka has a real penchant for yuri. There was another work I've seen somewhere, it was called "Ragnarok" something or other. It was an all female planet or something. If you're into yuri, it's a real feast. It didn't do much for me other than the artwork. The clothes they all wore were in a word...amazing. I think it was on a hentai site where I saw it, doujin-moe, hentairules, or something.