The anime's story follows Tsubasa, a new hire in the A&R department of the major recording company Gandala Music. Tsubasa is immediately assigned to oversee the idol unit B-PROJECT, which is made up of three idol groups: Kitakore, THRIVE, and MooNs. This is Tsubasa's first job, and she gets involved in various incidents and accidents as she deals with this group of young men who each have their own differing personalities. (Source: ANN)

The kingdom of Gemini is attacked by the evil Queen Halle. The twin princesses of the kingdom are missing, so is the important Night Star Box, which has affected planets including Earth. The fairy Queen had sent Prince You Le and Sally to Earth, looking for the Night Star Box with the help of Maggie and Michelle. Then the gang found out one of the girls who takes dance lessons with Maggie and Michelle is one of the missing princesses, Bei Bei! The mission to find the Night Star Box and the the still missing princess, Ya Ya, is now on the shoulder of the fairies. (Source: Mahou Shoujo Wikia, edited)

The dark-haired bishounen is Sakon Tachibana, a puppeteer, and the other is Ukon, his favorite puppet, and best friend. Sakon is the (only) grandson of Saemon Tachibana, a national treasure of Japan famous for his manipulation of Bunraku puppets. Ukon is a child doll puppet made in the early Meiji era by the famous female dollmaker Unosuke. Together they run into murders and solve them. (Source: AnimeNfo)

To help the fairy Queen find her disappeared friend Melody, who was a skillful music fairy from the Music Castle, Sally, Maggie, Michelle and Beibei encountering nine musical magicians and fighting with dark musical witch Voiceless. Sally and the fairies suspect that Melody is connected with the dark power behind the scene. While, what is the truth? (Source: Mahou Shoujo Wikia)