2112; the summer before Akane Tsunemori was assigned to Division One of the Public Safety Bureau's Criminal Investigation Department. Teppei Sugo, an accomplished pilot of the Defense Army's 15th Integrated Task Force, joins the military operation in Okinawa. Three months later, an unmanned combat drone opens fire on the Ministry of Defense in Tokyo. Enforcer Tomomi Masaoka of CID Division One is dispatched to Sugo's military base to investigate the truth behind this case.
Unfortunately the movie Psycho-Pass: Sinners of the System - Case.2 First Guardian is not yet available on HBO Max.
| Directing | Naoyoshi Shiotani | Director |
| Sound | Yugo Kanno | Original Music Composer |
| Visual Effects | Emiko Ueno | Color Designer |
| Art | Shuichi Kusamori | Art Direction |
| Writing | Gen Urobuchi | Original Story |
| Writing | Makoto Fukami | Screenplay |
| Camera | Eiji Arai | Director of Photography |
| Editing | Yoshinori Murakami | Editor |
| Sound | Hiroaki Sano | Music Producer |
| Sound | Yoshikazu Iwanami | Sound Director |
| Sound | Yasumasa Koyama | Sound Effects |
| Sound | Takayuki Yamaguchi | Sound Mixer |
| Production | Masaya Saito | Producer |
| Production | Hiroe Nakahara | Producer |
| Production | Fumi Morihiro | Producer |
| Production | Akitoshi Mori | Producer |
| Visual Effects | Shinya Sugai | 3D Director |
| Visual Effects | Hisashi Abe | Supervising Animation Director |
| Visual Effects | Yasuhiro Aoki | Character Designer |
| Visual Effects | Naoyuki Onda | Character Designer |
| Visual Effects | Kyoji Asano | Character Designer |
| Editing | Chika Ishii | Online Editor |
| Editing | Ryotaro Tate | Online Editor |
| Production | Yoko Matsuzaki | Executive Producer |
| Art | Naoki Arakawa | Storyboard Artist |
| Art | Atsushi Takeuchi | Storyboard Artist |
| Art | Yoshiharu Ashino | Storyboard Artist |
| Art | Naoyoshi Shiotani | Storyboard Artist |
| Directing | Yasuhiro Geshi | Second Unit Director |
| Visual Effects | Miyuki Nakamura | Lead Animator |
| Visual Effects | Ryota Furukawa | Lead Animator |
| Visual Effects | Tetsuro Moronuki | Lead Animator |
| Visual Effects | Hisashi Abe | Animation Director |
| Visual Effects | Ryota Furukawa | Animation Director |
| Visual Effects | Miyuki Nakamura | Animation Director |
| Visual Effects | Tetsuro Moronuki | Key Animation |
| Visual Effects | Ryota Furukawa | Key Animation |
| Visual Effects | Miyuki Nakamura | Key Animation |
| Visual Effects | Atsushi Takeuchi | Key Animation |
| Visual Effects | Tokuyuki Matsutake | Key Animation |
| Visual Effects | Yasuhiro Aoki | Key Animation |
| Visual Effects | Hisaki Furukawa | Key Animation |
| Visual Effects | Hideaki Matsuoka | Key Animation |
| Visual Effects | Yang Byung-gil | Key Animation |
| Visual Effects | Mayu Gushiken | Key Animation |
| Visual Effects | Shuuko Tomita | Key Animation |
| Visual Effects | Arisa Ito | Key Animation |
| Visual Effects | Dena Akehara | Key Animation |
| Visual Effects | Yukako Tsuzuki | Key Animation |
| Visual Effects | Nobuyoshi Souzaki | Key Animation |
| Visual Effects | Miki Kato | Key Animation |
| Visual Effects | Miyoko Shikibu | Key Animation |
| Visual Effects | Yuji Miyashita | Key Animation |
| Visual Effects | Chihiro Nishikawa | Key Animation |
| Visual Effects | Katsuhiro Takagi | Key Animation |
| Visual Effects | Miori Tsuzaka | Key Animation |
| Visual Effects | Fumi Morita | Key Animation |
| Visual Effects | Ryota Niino | Key Animation |
| Visual Effects | Yuko Yamamoto | Key Animation |
| Visual Effects | Tomoko Hamanaka | Key Animation |
| Visual Effects | Kanako Maru | Key Animation |
| Visual Effects | Akiko Nagashima | Key Animation |
| Visual Effects | Tomomi Takeuchi | Key Animation |
| Production | Miyuka Kidachi | Publicist |
| Writing | Naoyoshi Shiotani | Original Story |
