Hiroaki Arai Filmography
| 2025 | Takopi's Original Sin (TV Series) · as Animation Director |
| 2024 | Delicious in Dungeon (TV Series) · as Animation Director |
| 2023 | Frieren: Beyond Journey's End (TV Series) · as Animation Director |
| 2023 | NieR:Automata Ver1.1a (TV Series) · as Key Animation |
| 2022 | Do It Yourself!! (TV Series) · as Key Animation |
| 2021 | Kageki Shojo!! (TV Series) · as Animation Director |
| 2020 | Assault Lily: BOUQUET (TV Series) · as Opening/ending Animation |
| 2020 | Fate/stay night [Heaven's Feel] III. spring song · as Key Animation |
| 2020 | Gleipnir (TV Series) · as Animation Director |
| 2019 | Promare · as Key Animation |
| 2019 | Fate/stay night [Heaven's Feel] II. lost butterfly · as Key Animation |
| 2018 | I Want to Eat Your Pancreas · as Animation Director |
| 2017 | Fate/stay night [Heaven's Feel] I. presage flower · as Key Animation |
| 2017 | Fireworks · as Key Animation |
| 2017 | Princess Principal (TV Series) · as Animation Director |
| 2016 | Kantai Collection: KanColle Movie · as Key Animation |
| 2016 | March Comes in Like a Lion (TV Series) · as Key Animation |
| 2016 | Dimension W (TV Series) · as Key Animation |
| 2016 | Erased (TV Series) · as Animation Director |
| 2015 | GARAKOWA - Restore the World · as Key Animation |
| 2015 | Prison School (TV Series) · as Key Animation |
| 2015 | Gourmet Girl Graffiti (TV Series) · as Animation Director |
| 2014 | Parasyte -the maxim- (TV Series) · as Key Animation |
| 2014 | Rage of Bahamut (TV Series) · as Key Animation |
| 2014 | Nisekoi: False Love (TV Series) · as Animation Director |
| 2013 | Puella Magi Madoka Magica the Movie Part III: The Rebellion Story · as Key Animation |
| 2013 | Non Non Biyori (TV Series) · as Opening/ending Animation |
| 2013 | A Certain Magical Index: The Movie - The Miracle of Endymion · as Key Animation |
| 2012 | Kokoro Connect (TV Series) · as Animation Director |
| 2012 | Sword Art Online (TV Series) · as Key Animation |
| 2012 | Kids on the Slope (TV Series) · as Key Animation |
| 2011 | The Future Diary (TV Series) · as Animation Director |
| 2009 | Monogatari (TV Series) · as Key Animation |
| 2007 | Good Luck! Ninomiya-kun (TV Series) · as Key Animation |