Idol × Warrior Miracle Tunes! 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. The show was primarily aimed towards a female audience between the ages of 2 and 6. The show was advertised with the catchphrase, 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. The dances were choreographed by
EXPG Studio. Despite the difference in experience between Miike and the main cast, Miike's attitude towards the project was consistent with his other work, with
OLM producer Fumio Inoue stating that they worked without dismissing it as "simply a kids' show."
Principal photography for
Idol × Warrior Miracle Tunes! began in September 2016 Transformation and live finish scenes were filmed at a studio in front of a green screen, where CG effects were later applied. Nishiumi mentioned that scenes were shot with discussion from Miike, who wanted the show to be portrayed in a "cute" manner. Episode 38 was filmed in the headquarters of
Takara Tomy, with the live performance filmed first and the episode plot afterwards.
Casting Auditions were held by
Ciao and
Pucchigumi in December 2015 with the aid of
LDH. Five girls were selected out of 11 finalists. The winners were revealed in August 2016 at
Ciao Summer Festival, consisting of core cast members Asaka Uchida, Suzuka Adachi, and Yuzuha Oda. Rina Usukura and Mio Nishiyama were cast at the same time as Uchida, Adachi, and Oda, but were officially announced to the public during a press conference in June 2017. Ito was in charge of their dance lessons. Nishiumi assisted the cast with acting lessons, which began in June 2016. Prior to joining production, most of the main cast had dance experience, and Adachi, who had been part of EXPG Studio's female U-14 trainee team Kizzy and Bunnies. Usukura was a 5th generation member of the female U-12 dance and model agency Roni Girls. Nishiyama was the winner of Roni Girls' Catalogue Model Award in 2013 and the Smile Award at the
Ciao Girl Audition in 2015. The only cast member without any dance experience was Uchida, who noted that training was "difficult."
Broadcast The show was originally broadcast from April 2, 2017, to March 25, 2018, on
TV Tokyo and BS TV Tokyo. Episodes were also uploaded onto
Takara Tomy's official
YouTube channel one week after its original broadcast date, with each new episode available worldwide to the public for up to one week.
Idol × Warrior Miracle Tunes! was also aired in Thailand, South Korea, and China in regional language dubs. 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.
Music During the show's run, the in-show
Japanese idol group Miracle² held music activities under
Sony Music Entertainment Japan, with main cast Asaka Uchida, Suzuka Adachi, Yuzuha Oda, Rina Usukura, and Mio Nishiyama performing as their characters at concerts, live events, and music festivals, including
Japan Expo Thailand 2017. They also appeared as guest regulars as their characters on the children's variety show
Oha Suta. Miracle² performed all the opening and ending theme songs to
Idol × Warrior Miracle Tunes!, as well as other songs on the show's original soundtrack. An updated version, "Catch Me! (Powered Up Version)", was released as a
B-side to Miracle²'s second single, "Jump!", and includes Usukura and Nishiyama's vocals, which was used as the second opening theme song. 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. Likewise, "Ten Made Todoke" was praised for its "mature EDM sound" despite the actresses' age and was recommended for adults who enjoy idol music. ==Media==