Juzo Ono, a subordinate of Matsumoto Heizo. (yakunin government official) Ono Juzo finds himself torn between 'emotion' and 'duty' after encountering a certain woman. While Heizo worries about Juzo, he also delves into the heart of the matter. What choices will Juzo make, and what feelings will Heizo harbor for his future? Taking on the role of Juzo Ono, who holds the key to the story, is Tokio Emoto, following his performances in 'Lawless Love' and 'Blood for Blood.' This portrayal adds another layer to the character previously played by Tokio Emoto's father, Akira.
Is Samurai Detective Onihei: Dangerous Mercy on Netflix? Unfortunately the movie Samurai Detective Onihei: Dangerous Mercy is not yet available on Netflix.
| Visual Effects | Katsuro Onoue | Senior Visual Effects Supervisor |
| Sound | Ryo Yoshimata | Original Music Composer |
| Art | Tomoko Kurata | Production Design |
| Sound | MATSUMOTO Satoru | Sound Recordist |
| Lighting | Shohei Okuda | Gaffer |
| Camera | Shôji Ehara | Director of Photography |
| Production | 秋永全徳 | Associate Producer |
| Production | TAKURA Hironori | Producer |
| Production | Nagatomi Kotaro | Producer |
| Production | Kohei Adachi | Producer |
| Production | Tomoyuki Miyagawa | Executive Producer |
| Writing | Sumio Ōmori | Screenplay |
| Writing | Shotaro Ikenami | Original Story |
| Directing | Tomohiko Yamashita | Director |
| Sound | Kazuyuki Ishii | Music Editor |
| Editing | NOZAWA Hitomi | Editor |
| Visual Effects | Takafumi Yuki | Visual Effects Producer |
| Visual Effects | Takashi Tanaka | VFX Supervisor |
| Art | Hideshi Nakagomi | Set Decoration |
| Directing | Yu Horiba | Assistant Director |
| Production | Yutaka Mizoguchi | Line Producer |
| Editing | Seiji Saitô | Color Grading |
| Sound | Takao Kazuma | Sound Effects |
| Sound | kiyoshi kawahara | Sound Mixer |
| Sound | kiyoshi kawahara | Dialogue Editor |
| Art | 上田耕治 | Props |
| Costume & Make-Up | Noriko Mashiba | Costumer |
