Ayumi Nitta is a member of a hospital cleaning staff and suffers from extreme social anxiety. After having a one-night stand with genius surgeon and sex addict Wataru Makino, Ayumi discovers she’s pregnant. However, when she tells Wataru, he dismisses her claim as a bad April Fools joke. Refusing to believe he could possibly be the father of Ayumi’s baby after just one night together, Wataru takes a woman named Reiko on a date to an Italian restaurant. However, Ayumi also shows up, leading to a major incident.
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.
The Hidden Blade
Set in 19th Century Japan a young samurai who finds himself in love with a farm girl leaves his home to begin a new life. He has to take stock of his new life when he is put to the test and ordered to kill a traitor who just happens to be his dearest friend.