Anyone know a good place where I can find the CG for this game or for Black Lillith games in general?
e-hentai and exhentai didn't yield anything
e-h/x does carry Lilith stuff, you just have to tick "Show Expunged Galleries" under Advanced Options.
http://g.e-hentai.org/g/696647/4f8a9fcc3a/