Succubus Research Diary will be released on September 6th!

Succubus Research Diary finally has a release date. Although it's not quite in late August as earlier planned, it's still in the very near future. Only three weeks now until the exciting, erotic, and adult-rated adventures of Serena and Nerisha can begin! Prepare yourself to dive into the mysterious Underground where you can learn what happens when an exceptionally seductive human meets a totally inexperienced succubus...