After his father passes away at age 10, the lives of Luis Palau and his family are changed forever. Within a few years of his father’s death, Luis, his siblings, and his mother are left nearly destitute. Luis is forced to discontinue his education at an elite boarding school in Argentina and provide for his family as they slip into poverty.
Set along a backdrop of a fictitious second world war at an international city in Asia. In Japan, Lieutenant Colonel Yuki (Yusuke Iseya) recommends the creation of spy training school “D Kikan”. Meanwhile, Kato (Kazuya Kamenashi) is facing capital punishment for his refusal to follow a superior’s order. Kato is then scouted by “D Kikan”. He goes through a harsh training regiment and faces his first mission as a spy. In order to seize American ambassador Graham’s confidential documents “Black Note.” Kato infiltrates into an international city. A battle to gain possession of the “Black Note” ensues between Kato, a mysterious woman named Rin (Kyoko Fukada), the British Spy Agency, the Soviet Spy Agency and the radical army in Japan.