H03203 Mesu Nochi Torare Ep 1: A Student Council President's Strange Arousal

During cultural festival preparations, student council president Reiko and her boyfriend Shintaro find a student offering a festival drink, and Reiko suddenly feels aroused. They enter a classroom maze, but when separated and reunited, she can't control her urges, only to realize it wasn't Shintaro who found her. Shintaro notices her strange behavior and consults Misaki, who suggests a trip to an amusement park. On the trip, Misaki vanishes, and Reiko gets a shocking image of what happened to her.