I should check if there's any publicly available information about this doujinshi. If not, the post will have to be general, based on the title. I can talk about the blend of love and darkness, the possible conflict between good and evil, and how the curse adds a twist. Maybe mention that it's a work worth exploring for fans of such themes.

While is primarily an audio work (RJ series typically indicates a voice/drama track), it utilizes the "choose your own ending" mechanic common to DLsite’s advanced players.