Ron Kamonohashi was once regarded as a genius at the top detective training academy. But after a fatal mistake, he was expelled and forbidden to become a detective. Years later, police officer Totomaru Isshiki knocks on Ron’s door seeking help on a serial murder case. He finds Ron, now a messy-haired recluse, who agrees. Together, this mismatched detective team begins solving their first mystery!
You can now watch Ron Kamonohashi's Forbidden Deductions online on the following streaming providers in the United States.
| Writing | Wataru Watari | Series Composition |
| Visual Effects | Masakazu Ishikawa | Character Designer |
| Visual Effects | Yuki Hayashi | Color Designer |
| Sound | Yo Tsuji | Original Music Composer |
| Sound | Chieko Mizutori | Music Producer |
| Directing | Shota Ibata | Series Director |
| Editing | Toshihiko Kojima | Editor |
| Camera | Yasuyuki Itou | Director of Photography |
| Writing | Akira Amano | Comic Book |
| Art | Asaho Takahashi | Art Designer |
| Art | Wei Siman | Art Direction |
| Sound | Yayoi Tateishi | Sound Director |
| Production | Makoto Kohara | Executive Producer |
| Production | Ryu Takahashi | Executive Producer |
| Production | Takuya Yoshioka | Producer |
| Production | Akihiro Sotokawa | Producer |
| Sound | Erika Fukushima | Sound Mixer |
| Sound | Arisa Daido | Foley Artist |
| Editing | Yuki Arai | Online Editor |
| Production | Aya Iizuka | Producer |
| Sound | Yasushi Inomata | Sound Effects |
| Production | Hideo Hirata | Producer |
| Production | Koichi Inaba | Executive Producer |
| Production | Keisuke Sano | Executive Producer |
| Production | Shota Amano | Producer |
| Production | Ayumi Ohigashi | Publicist |
| Production | Sho Tanaka | Executive Producer |
| Editing | Ayato Yasuda | Online Editor |
