The adventures of a group of schoolgirl superheroes, Sailor Moon is a lighthearted kiddy variation on a ubiquitous Japanese subgenre, stories of alienated adolescents granted paranormal powers and enlisted on the side of virtue in apocalyptic struggles across space and time. Tokyo middle-school student Serena is transformed into Sailor Moon by the power of a mysterious locket. She acquires a cute sidekick in the form of a talking cat named Luna and in the succeeding episodes she begins to assemble her support team of spunky Sailor Scouts (Sailors Mercury, Mars, Jupiter, and Venus) who join her to defend the earth against the forces of Queen Beryl and the evil Megaverse.