Nakatsu was laid off at his company and now works part-time at a convenience store. One day, Nakatsu forms a vigilante group to protect his town with Toshida, who has a mysterious physical ability, Kanari, who is a female high school student with excellent information gathering abilities, and Kusaki, who wields hammers under his sleeves. As they punish evil doers, the group gains popular support and flourish.
Is Maniac Hero on Netflix? Unfortunately the movie Maniac Hero is not yet available on Netflix.
| Art | Hidefumi Hanatani | Production Design |
| Writing | Shigeyuki Fukumitsu | Original Story |
| Directing | Keisuke Toyoshima | Director |
| Writing | Jun Tsugita | Screenplay |
| Crew | Saori Masuko | Script |
| Writing | Shigeyuki Fukumitsu | Comic Book |
| Editing | Masaki Murakami | Editor |
| Production | Tomoo Fukatsu | Producer |
| Camera | Hajime Kanda | Director of Photography |
| Sound | Hiroshi Ishigai | Sound Recordist |
| Sound | Gabriele Roberto | Original Music Composer |
| Production | Yoshiki Terashima | Producer |
| Production | Kenichi Yoshida | Producer |
| Sound | Hiroshi Ishigai | Sound |
| Sound | Akihiko Okase | Sound Effects |
| Costume & Make-Up | Kakusei Fujiwara | Special Effects Makeup Artist |
| Art | Yoshihisa Taguchi | Decorator |
| Lighting | Yoshimi Watabe | Gaffer |
| Production | Yume Minamidani | Casting |
| Costume & Make-Up | Noriko Ishihara | Costumer |
