Joker Game

is a Japanese novel series written by Koji Yanagi. It has inspired a live-action film, two manga adaptations and an anime television series produced by Production I.G, which aired from April to June 2016. Characters Yuuki is the founder of D-Agency, a lieutenant colonel of the Imperial Japanese Army, and a spymaster. As a spy he was named as the "Demon Lord." He is the adopted son of Viscount Arisaki, originally known as Akira Arisaki. He is good at academics, but was expelled from the military school for his cowardly tactics of fighting. This led him to open up the D-Agency, or this is what the information trail he left behind explains, but the spy who uncovers this information finds that it may all be a fabrication taken from another individual altogether. A man from the Imperial Japanese Army, Sakuma was sent to D-Agency to work as a liaison. He is a diligent soldier and is cautious of his surroundings. Although he personally dislikes spies, after the incident in Gordon's house, he's grown to understand them.