Taking place in the year 1937 on the eve of World War II, the story involves a mysterious spy training organization known as the "D Agency." The organization is established by Lieutenant Colonel Yuuki from the Imperial Japanese Army. His ideals lead him to recruit people beyond military academy graduates and personnel, while training them to become skilled agents in arts of manipulation. These agents would become a specialized team to conduct operations. One such antihero agent, under the name Jirou Gamou, goes on a harrowing mission to uncover secret documents titled "Black Notes," while battling forces from within and without his own ranks.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Joker Game (1) | 2016-04-05 | 25 min |
| Season 1 | Episode 2 | Joker Game (2) | 2016-04-12 | 25 min |
| Season 1 | Episode 3 | Miscalculation | 2016-04-19 | 25 min |
| Season 1 | Episode 4 | City of Temptation | 2016-04-26 | 25 min |
| Season 1 | Episode 5 | Robinson | 2016-05-03 | 25 min |
| Season 1 | Episode 6 | Asia Express | 2016-05-10 | 25 min |
| Season 1 | Episode 7 | Codename: Cerberus | 2016-05-17 | 25 min |
| Season 1 | Episode 8 | Double Joker (1) | 2016-05-24 | 25 min |
| Season 1 | Episode 9 | Double Joker (2) | 2016-05-31 | 25 min |
| Season 1 | Episode 10 | Pursuit | 2016-06-07 | 25 min |
| Season 1 | Episode 11 | Coffin | 2016-06-14 | 25 min |
| Season 1 | Episode 12 | XX (Double Cross) | 2016-06-21 | 25 min |
| Sound | Yoshikazu Iwanami | Sound Director |
| Writing | Taku Kishimoto | Series Composition |
| Directing | Kazuya Nomura | Series Director |
| Production | Daijo Kudo | Executive Producer |
| Production | Rui Kuroki | Executive Producer |
| Production | Sachi Kawamoto | Producer |
| Visual Effects | Toshiyuki Yahagi | Supervising Animation Director |
| Art | Akiko Murayama | Prop Designer |
| Art | Yoshio Tanioka | Art Direction |
| Art | Hideyasu Narita | Art Designer |
| Visual Effects | Sayoko Noda | Color Designer |
| Camera | Koji Tanaka | Director of Photography |
| Visual Effects | Noriki Tsukamoto | CGI Director |
| Crew | Masahiro Murakami | Special Effects |
| Editing | Junichi Uematsu | Editor |
| Sound | Kenji Kawai | Original Music Composer |
| Sound | Atsushi Yamamori | Music Producer |
| Visual Effects | Atsuko Nakajima | Opening/Ending Animation |
| Visual Effects | Tokuyuki Matsutake | Opening/Ending Animation |
| Writing | Koji Yanagi | Novel |
| Visual Effects | Takayuki Goto | Opening/Ending Animation |
| Visual Effects | Ryota Furukawa | Opening/Ending Animation |
| Visual Effects | Miyuki Nakamura | Opening/Ending Animation |
| Visual Effects | Shuuko Tomita | Opening/Ending Animation |
| Visual Effects | Miyoko Shikibu | Opening/Ending Animation |
| Visual Effects | Miori Tsuzaka | Opening/Ending Animation |
| Visual Effects | Kazunori Akiyama | Opening/Ending Animation |
| Visual Effects | Hiromi Suzuki | Opening/Ending Animation |
| Visual Effects | Shunji Suzuki | Opening/Ending Animation |
| Visual Effects | Mino Matsumoto | Opening/Ending Animation |
| Visual Effects | Chie Morita | Opening/Ending Animation |
| Visual Effects | Chiyo Nakayama | Opening/Ending Animation |
| Visual Effects | Kazuya Nomura | Opening/Ending Animation |
| Visual Effects | Takeshi Ninomiya | Opening/Ending Animation |
| Visual Effects | Asuka Yamaguchi | Opening/Ending Animation |
| Visual Effects | Toshiyuki Yahagi | Opening/Ending Animation |
| Art | Yumi Horikoshi | Background Designer |
| Production | Hirotsugu Ose | Producer |
| Production | Natsumi Mori | Producer |
| Production | Yoko Shiraishi | Producer |
| Production | Noritomo Isogai | Producer |
| Production | Kazuo Onuki | Producer |
| Production | Keisuke Arai | Producer |
| Production | Shungo Eguchi | Producer |
| Production | Seiichi Shirato | Researcher |
| Visual Effects | Masashi Ito | Opening/Ending Animation |
