This was a radio broadcast meant to promote sales for the original Twilight Syndrome release; it ran from April to October 1995 on Nippon Cultural Broadcasting (文化放送). It was hosted by Kikuko Inoue and consisted of four segments: “The Dark Side of the school“, in which Inoue would recite a branching storyline that would change depending on her or her guest’s choices, each based on schoolyard rumors suggested by the listeners, “I’ve got a scary thought“, in which Inoue and the guests would discuss scary thoughts, “Have you seen this horror movie?” in which they’d discuss lesser known horror films, and “Ask oneechan〜” in which Inoue would answer the listeners questions.
Kikuko Inoue was also involved with the rest of the Twilight Syndrome franchise, providing the voice for Yukari Hasegawa in the 3D Drama Special, Chisato Itsushima in The Memorize disc and Sakura Himegami in the actual game.