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.
Kenyu Horiuchi
Lieutenant Colonel Yuuki (voice)
Mika Kanda
Nurse (voice)
Tessyo Genda
Colonel Mutou (voice)
Daigo Fujimaki
Man (voice)
Shou Okumura
Police Officer (voice)
Takahiro Sakurai
Tazaki (voice)
Hiro Shimono
Miyoshi (voice)
Yuki Kaji
Hatano (voice)
Shunichi Maki
Passenger (voice)
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