I'm looking for, as the title suggests, yuri manga whose content is mature - graphically or emotionally(not that most are not) or even better, both.
NO yuri undertone crap. It has to be the central focus of the manga. And if possible, I would be glad if the manga is a bit long.
As for what I've already read.....
Shoujo Sect
Girl Friends
Prism
Kimi Koi Limit
Marriage Black
Hoshikawa Ginza District 4
I fell in love for the first time
Thanks in advance