Shinjuku Ward, east side… The center of the street with the most chaos, there's Kabuki-chō, full of neon lights. When the light is stronger, the shadow is deeper. The story begins when certain bizarre murder happens one night! Suspense? Or Comedy? Drama that cannot be identified begins!
You can now watch Case File N° 221: Kabukicho online on the following streaming providers in the United States.
| Writing | Taku Kishimoto | Series Composition |
| Visual Effects | Toshiyuki Yahagi | Character Designer |
| Sound | Lozareena | Theme Song Performance |
| Sound | EGO-WRAPPIN | Theme Song Performance |
| Production | Sachi Kawamoto | Producer |
| Art | Kazushige Kanehira | Art Designer |
| Directing | Ai Yoshimura | Series Director |
| Production | Toshihiro Maeda | Producer |
| Production | Hiroo Maruyama | Executive Producer |
| Production | Katsuji Morishita | Executive Producer |
| Production | Naokazu Tsuruta | Executive Producer |
| Crew | Sumie Murakami | Special Effects |
| Production | Norie Shimizu | Producer |
| Crew | Masahiro Murakami | Special Effects |
| Production | Kozue Kananiwa | Executive Producer |
| Production | Daijo Kudo | Executive Producer |
| Sound | Yukio Nagasaki | Sound Director |
| Sound | Hiromune Kurahashi | Sound Effects |
| Sound | Takurou Iga | Original Music Composer |
