Synopsis

To initiate a biological attack against Japan, Destron seized control of the Osato Biological Institute, subjecting its lead scientist to brutal interrogation in order to acquire his research. Simultaneously, Rider Scout Yoshio observed a disturbing pattern: young women entering the institute were never seen leaving. Driven by suspicion, he investigated, only to be captured by Cockroach-Spike. Junko, posing as a housekeeper, ventured into the facility to rescue him, but her presence as a spy was