The show is the first installment of the Girls × Heroine Series conceived by Takara Tomy and OLM, Inc. with the assistance of Shogakukan and EXPG Studio, aimed towards a female demographic between ages 2 to 6.

The series stars Asaka Uchida, Suzuka Adachi, Yuzuha Oda, Rina Usukura, and Mio Nishiyama.

The plot is centered on Japanese idol girl group Miracle² (pronounced "miracle miracle"), elementary and middle school girls who transform into Idol Warriors to retrieve the Sound Jewels, artifacts from the Music Kingdom, to stop the Demon King from taking over the world.

In addition, the show utilizes special effects for the transformation and battle scenes, which were later added after principal photography.

The series achieved a wide demographic appeal to girls, due to it being a live-action show centered on female interests, and with parents, who enjoyed the dancing and music.

In order to recover the Sound Jewels, the goddess of the Music Kingdom sends the Fairy Rhythms (妖精リズムズ, Yōsei Rizumuzu) Poppun, Rockie, and Clanosuke to the human world to seek help.

Becoming Miracle Tunes, the girls fight to purify the Negative Jewels back into their original forms to stop the Demon King.

was a collaborative project between Takara Tomy, OLM, Inc. and Shogakukan, the publishers of the manga magazines Ciao and Pucchigumi.

The production also included a toy line produced by Takara Tomy, featuring the magical items, weapons, and accessories depicted in the show.

[5][40] Additional staff members included Yoshitaka Yamaguchi, Takeshi Yokoi, Kenichiro Nishiumi, and Ryusuke Kurahashi as episode directors, with Hisako Fujihira, Kana Matsui, and Mao Aoki as the main writers for the show.

[44] Transformation and live finish scenes were filmed at a studio in front of a green screen, where CG effects were later applied.

[45] Nishiumi mentioned that scenes were shot with discussion from Miike, who wanted the show to be portrayed in a "cute" manner.

[48] The winners were revealed in August 2016 at Ciao Summer Festival, consisting of core cast members Asaka Uchida, Suzuka Adachi, and Yuzuha Oda.

[16] Rina Usukura and Mio Nishiyama were cast at the same time as Uchida, Adachi, and Oda,[49] but were officially announced to the public during a press conference in June 2017.

[62] Because television and commercials did not have a wide reach to the target demographic, project manager Reiko Sasaki attempted to use YouTube and other social media to have a wider outreach to the audience.

", performed by Miracle², which was given hip hop, rock, techno, and enka remixes to correspond with the special battle modes portrayed in the show.

[66] The opening theme song for the show's second half, "Ten Made Todoke", featured elaborate choreography that the cast found difficult to learn, but also contained simple hand movements during the chorus that children could follow.

"[67] Likewise, "Ten Made Todoke" was praised for its "mature EDM sound" despite the actresses' age and was recommended for adults who enjoy idol music.

[79][80] As a side promotion to the series, the June 2017 issue of Ciao also distributed the Folk Sound Jewel as one of its furoku (magazine gifts).

[82] A novelization written by Kana Matsui, one of the show's screenwriters, was released on March 22, 2017, with illustrations provided by Asuka Ogura.

[86] Kanon's Idol Warrior outfit was made available in the arcade game PriPara for the characters Michiru, Nino, Mirei, Laala, Yui, and Sophy through a card exclusively released in Pucchigumi on August 12, 2017.

[4][71] The main cast consists of Giulia Sara Salemi, Emily Shaqiri, and Jasmine Roberta Molinaro.

[90][91] The supporting cast includes Raul Navarro, Josep Ma Riera, Yuna Miralles, Angelo Pintus, Michelle Hunziker, Leonardo Decarli, and Greta Pierotti.

[61] Roberto Cenci signed on as the main director of the remake, stating that he believed that it would be "successful" in Europe and that the show in general gave "important messages" to children.

[3] However, in spite of this, Confidence magazine and Oricon determined it started a "new genre" for shows aimed at the female toddler to primary school age demographic.

was viewed as a new female counterpart to the Super Sentai series due to including female-oriented interests like Japanese idols, which were often seen in media targeted to young girls.

[2] Shogakukan project manager Reiko Sasaki stated that parents thought Idol × Warrior Miracle Tunes!