The story centers on a boy named Yamada Uro, and a 17-year old girl named Karon. Both work as part of the "Hero Retirement and Return to Everyday Life Assistance Agency," which takes heroes from another world back to Earth and helps them reintegrate into everyday life. Karon, a former hero herself, works under Uro as they tackle cases, and also lives with him, with Uro constantly failing to rein in Karon's hero-like behavior even as he tries to ingrain the behavior of common people into her.
Unfortunately the movie "Eiyuu" Kaitai is not yet available on HBO Max.
| Sound | Toshiki Kameyama | Sound Director |
| Visual Effects | Mitsuru Chiba | Character Designer |
| Visual Effects | Takayuki Hamada | Key Animation |
| Art | Kazuyuki Hashimoto | Art Designer |
| Visual Effects | Kazeno | Character Designer |
| Visual Effects | Naoko Satou | Color Designer |
| Camera | Takahiro Hondai | Director of Photography |
| Editing | Rumi Maruyama | Editor |
| Crew | Kyohei Koyama | Creator |
| Directing | Toshimasa Kuroyanagi | Script Supervisor |
| Sound | Shota Yaso | Sound Effects |
| Directing | Toshimasa Kuroyanagi | Director |
| Writing | Toshimasa Kuroyanagi | Screenplay |
