Fortune Arterial
NOTE: Following links may be NSFW
On that note, August is releasing a new game called
Aiyoku no Eustia
Character descriptions in Mandarin
No idea when it's released though...
From a quick skim through of the story, it seems pretty much darker than their previous stuff. It's a post-apocalyptic fantasy (some kind of God sent doom it seems) and the setting seems to be some kind of prison-ghetto city