It launched in the March 2016 issue of ASCII Media Works' Dengeki G's Magazine as a serial novel written by Wataru Watari, with illustrations by QP:flapper and Yamcha.

A manga series, written by Watari and illustrated by Yūki Dōmoto, was serialized in ASCII Media Works' Dengeki G's Comic between the April 2016 and July 2017 issues.

A spin-off four-panel comic strip manga series, titled Girlish Number Shura (ガーリッシュ ナンバー 修羅) and illustrated by Shin Ikezawa and Yū Tsurusaki, was serialized online by Dengeki G's Magazine from August 15 to November 26, 2016; a single volume was released on November 26, 2016.

The opening theme is "Bloom" and the ending theme is "Ima wa Mijikashi Yumemiyo Otome" (今は短し夢見よ乙女); both songs are sung by Girlish Number, a group made up of Sayaka Senbongi, Kaede Hondo, Yui Ishikawa, Eri Suzuki and Saori Ōnishi.

The opening theme of the first episode is "Ketsui no Dia" (決意のダイヤ) sung by Kohaluna, a fictional unit made up of Momoka Sonō (Suzuki) and Kazuha Shibasaki (Ōnishi).