Kenichi Suzumura (D.Gray-man) and Nao Touyama (Gate: Jieitai Kanochi nite, Kaku Tatakaeri) will cast as Figaro and Xunyu, respectively.
Director: Tomoki Kobayashi (Akame ga Kill!, Seiren)
Series Composition, Script: Yuuichirou Momose (Hajimete no Gal, Ore ga Suki nano wa Imouto dakedo Imouto ja Nai)
Character Design: Masahiko Nakada (Utawarerumono, Tears to Tiara)
Sound Director: Kisuke Koizumi (Dororo, Juuni Taisen)
Music: Kenji Hiramatsu (Saint Seiya Omega opening theme arrangement)
Background Art: Production Ai
The promotional video previews the opening song "Unbreakable" by Aoi Yuuki.
Kaidou launched his fantasy novel on the Shousetsuka ni Narou website in October 2015. Hobby Japan began printing the novels in October 2016 and will publish the 11th volume on November 1. The anime adaptation commemorates Hobby Japan's 50th anniversary.