On 13 March 2017, Aniplex revealed in event at the Dengeki Game Festival 2017 event about more details of the anime film The Irregular at Magic High School: The Movie – The Girl Who Summons the Stars including the theme song "Speed Star" that would be sung by Garnidelia.[2] The song was released as a single on 14 June 2020 on three edition; Regular edition, Limited edition and Limited anime edition.[3] The single reached number 11 on Oricon, 21 on Japan Hot 100, and 3 on Japan Hot Animation with spent 6, 3 and 3 weeks respectively. The album version of this song, which use the intro in the music video, was featured in their third album "G.R.N.D.".[4]
The music video for "Speed Star" was directed by Shin Okawa.[5] The video features the duo with the bands playing the song in the studio, with sometimes the scene show MARiA and toku play in the outer space that show much star in the sky. Some scene feature MARiA dance with two of the girls. The music video sometimes use black and white effect, which refer to their second single.[A]
^The style effect of music video is refer to grilletto, cause grilletto's music video is using the same style of the effect itself, which make this song is called the continuation of grilletto, remembering that grilletto is used as the second opening of the series, while speed star is used as the theme song of the movie series