Nephrinn has started a translation project called Dark Translations, aiming to translate some of the darker games, especially from Black Lilith. He is currently working on his second game translation, Gang Rape Club, and is finding the game darker than expected.
Nephrinn has previously translated a short game from Black Lilith called Anti-Demon Ninja Asagi 1. The translation patch for this game is available from the Dark Translations website.
According to the site, current translation progress of Gang Rape Club is at 5% or so. Originally, after finishing Asagi 1, Nephrinn left the choice of his second project to a vote by his readers, and thus this was how it was decided to translate Gang Rape Club. In addition to updates about the translation, there are also character profiles available on the site.