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.

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.

All seniors at a high school stay together at a camp, including student Chinatsu. On their first day, the home room teacher announces that all the students must play the card game "Old Maid". In order to reverse the declining academic abilities of its younger generation, the Japanese government planned this camping program. In this card game, the students that lose will meet their deaths.

Set several days after "Joker Game". 7 girls, who lost in a game, are gathered at a correctional institution. The girls must now participate in "Escape Game of Death". The 7 girls, who are locked in a room, have to find hidden clues and must cooperate with one another to escape. Because of a trap, the first victim comes out…

The brother and sister have no living family and depend their lives on each other. The sister is a beauty and has many suitors fighting over her. Unfortunately the sister has been cursed and cannot get romantically involved. The neighbors make fun of her for that. After visiting many doctors, Uncle Piu volunteers to treat her, which arouses Uncle Piu’s wife’s suspicions and leads to a series of funny instances…