This bonus episode follows biology teacher Tetsuo Takahashi and his demi students into the local summer festival, where Tetsuo asks the succubus teacher Sakie Satou to help him patrol the grounds. When the festival crowd drifts toward a nearby shrine, the demis and Himari Takanashi's group keep startling one another in the dark, mistaking each side for something supernatural. A short companion piece to the Interviews with Monster Girls series rather than a standalone entry point.