After demonstrating his plans to Queen Beryl, Jadeite (Jedite) summoned his Youma servant Cyrene to infect a broadcasting studio of a recording company (Jam Records) with dark energy from a cassette tape. The cassette tape will infect any music recorded in the broadcasting studio with subliminal high frequency waves which would drain energy from anyone listening to the music. However, before she could play the tape, she was forced to hide after the head of the company’s recording team Akiko Yanagi, took the tape mistaking it for a demo tape from the jazz pianist Yusuke Amade. Enraged, the Youma stalked the woman with “the intent on killing her to recover the tape. The youma, still in hiding, followed Akiko Yanagi and saw her pass the tape to Yusuke Amade who was” waiting for her in the lobby of the recording company. Cyrene followed Yusuke Amade in an alleyway and attempted to attack him to retrieve the tape, but he managed to escape before she could act. Cyrene reported to Jadeite in a dump site on the progress of her mission with Jadeite threatening her with death if the tape was not recovered. In desperation, she eventually succeeded in retrieving the tape attacking him in the parking garage of the music clubs he works at. Before Cyrene could kill Yusuke Amade; Usagi (Serena) Tsukino and Luna interrupted her witnessing Cyrene transform into her true Youma form before flying off back to the recording studio to complete her mission. Yusuke Amade, Usagi (Serena) Tsukino and Luna followed Cyrene back to the recording company, where she put Akiko and her crew to sleep before attempting to infect a broadcasting studio. She was once again interrupted by the arrival of the three. Luna lunged at her, forcing her to drop the tape which skidded across the floor right into Usagi (Serena) Tsukino's hands. Cyrene again transformed into her Youma form and grabbed Akiko Yanagi in exchange for the cassette tape. Usagi (Serena) Tsukino then threw the tape in the air giving Yusuke Amade the opportunity to rescue Akiko Yanagi. The tape was then grabbed by Luna who crushed it with her right paw. Distraught, Cyrene fled once again to an outdoor concert hall where she was confronted by Sailor Moon. Immediately, Cyrene attacked her blasting sound waves from her wings. Sailor Moon retaliated by hurling a microphone at Cyrene as she made her second attack. The microphone amplified the sound waves from her attack causing large subwoofer speakers to blast the attack back at the Youma. The attack which backfired on Cyrene incapacitated her long enough for Sailor Moon to finally destroy her with her Moon Tiara.