| Cinderella Nine | |
 Game logo | |
| 八月のシンデレラナイン (Hachigatsu no Shinderera Nain) | |
|---|---|
| Genre | Sports (baseball, cricket)[1] |
| Video game | |
| Publisher | Akatsuki |
| Genre | Simulation, Social network game |
| Platform | iOS, Android |
| Released |
|
| Manga | |
| Hachi Nai Gaiden: Senryoku Gai! Katato-chan | |
| Written by | Bkub Okawa |
| Published by | Kadokawa Shoten |
| Original run | May 2017 – June 2017 |
| Serial novel | |
| Hachigatsu no Cinderella Nine ～Before Summer～ | |
| Published by | Kadokawa |
| Light novel | |
| Hachigatsu no Cinderella Nine Kitakaze ni Yureru Himawari | |
| Written by | Akatsuki |
| Illustrated by | Akatsuki, Chioru Katase |
| Published by | Enterbrain |
| Imprint | Famitsu Bunko |
| Demographic | Male |
| Published | April 28, 2018 |
| Original net animation | |
| Katato the Animation | |
| Released | May 2017 – June 2017 |
| Episodes | 4 |
| Anime television series | |
| Directed by | Susumu Kudo |
| Written by | Jin Tanaka |
| Music by | Takahiro Obata |
| Studio | TMS Entertainment |
| Licensed by |
|
| Original network | TV Tokyo, TVA, TVO, BS TV Tokyo, AT-X |
| Original run | April 7, 2019 – July 7, 2019 |
| Episodes | 12 |
| Manga | |
| Hachigatsu no Cinderella Nine S | |
| Written by | Kōichirō Hoshino |
| Published by | Akita Shoten |
| Imprint | Shōnen Champion Comics |
| Magazine | Weekly Shōnen Champion (August 19, 2021–March 10, 2022) Manga Cross (March 17, 2022–May 17, 2023) |
| Demographic | Shōnen |
| Original run | August 19, 2021 – May 17, 2023 |
| Volumes | 5 |
Cinderella Nine (Japanese: 八月のシンデレラナイン, Hepburn: Hachigatsu no Shinderera Nain, "Cinderella Nine in August") is a free-to-play mobile video game for iOS and Android published by Akatsuki and Kadokawa. It was released in Japan on June 27, 2017 and will end service on December 17, 2024. A four-panel comedy spin-off manga series by Bkub Okawa titled Hachi Nai Gaiden: Senryoku Gai! Katato-chan (ハチナイ外伝 戦力外！カタトちゃん) and a novelization titled Hachigatsu no Cinderella Nine ～Before Summer～ (八月のシンデレラナイン ～before summer～) are being serialized on the game's official website. A 4-episode original net animation adaptation of the four-panel manga titled Katato the Animation (カタトTHEアニメーション) was streamed between May and June 2017, and an anime television series adaptation of the original game by TMS Entertainment aired from April 7 to July 7, 2019.