The official website of Hisone to Maso-tan announced cast members for the series on Saturday. A new key visual (pictured) drawn by animator Yoshiyuki Itou (Space Dandy) has also been revealed.

Cast
Hisone Amakazu: Misaki Kuno (Nanatsu no Taizai)
Nao Kaizaki: Tomoyo Kurosawa (Houseki no Kuni (TV))
Eru Hoshino: Maki Kawase (Centaur no Nayami)
Ririko Kinutsugai: Satomi Arai (Toaru Kagaku no Railgun)
Mayumi Hitomi: Kaori Nazuka (Eureka Seven)
Sada Hinomoto: Romi Park (Fullmetal Alchemist)
Haruto Okonogi: Yuki Kaji (Shingeki no Kyojin)
Yutaka Zaitou: Yukitoshi Tokumoto (Ryuu no Haisha)
Remi Kakiyasu: Rie Kugimiya (Gintama)
Hiroki Ikushima: Junichi Suwabe (Fate/Apocrypha)
Hiroshi Sosoda: Jouji Nakata (Fate/stay night)

Supervised by Shinji Higuchi (Fushigi no Umi no Nadia episode director) and directed by Hiroshi Kobayashi (Kiznaiver) at studio Bones, the original anime will air in April 2018 on Tokyo MX and BS Fuji, among other stations.

Source: Comic Natalie