Kip. 6: Protect the Melody of Love: Usagi Plays Cupid

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Jadeite creates a cassette tape that can drain life energy, but the monster Kyurene he gives it to promptly loses it. It ends up in the possession of a jazz pianist and composer named Yusuke Amade, and Usagi must disguise herself as an adult to protect him. Jadeite gives Kyurene an ultimatum to retrieve the tapes with negative subliminal waves and spread it through a radio station. The monster takes the tape from Yusuke Amade and Usagi interrupts him when he tries to kill him. They follow the monster to the radio station and Usagi transforms into Sailor Moon to fight. (Source: Wikipedia)