Kosei Hirayama Filmography
| 2025 | Once Upon a Witch's Death (TV Series) |
| 2025 | I Want to Escape from Princess Lessons (TV Series) |
| 2025 | Ameku M.D.: Doctor Detective (TV Series) |
| 2024 | Senpai Is an Otokonoko (TV Series) |
| 2025 | Flower and Asura (TV Series) · as Opening/ending Animation |
| 2022 | SPY x FAMILY (TV Series) · as Key Animation |
| 2021 | Takt op.Destiny (TV Series) · as Key Animation |
| 2021 | Re-Main (TV Series) · as Key Animation |
| 2021 | Edens Zero (TV Series) · as Key Animation |
| 2019 | Rascal Does Not Dream of a Dreaming Girl · as Compositing Artist |
| 2018 | Zombie Land Saga (TV Series) · as Key Animation |
| 2016 | Maho Tsukai PreCure! (TV Series) · as Key Animation |