Akiko(1996)

Akiko is an anime series that follows Special Agent Akiko as she investigates a mysterious epidemic sweeping through the prestigious Nobel Academy. Students are experiencing unusually intense sexual urges, and when one female scholar spends her entire summer vacation isolated in her room, her concerned father contacts the Central Genetic Research Institute. Akiko goes undercover at the academy to uncover the source of the phenomenon gripping the student body. As she digs deeper, she must determine whether the outbreak is biological, psychological, or something far more sinister. The series blends mystery and psychological thriller elements as Akiko navigates the academy's secrets while trying to help the afflicted students.