
In 1937, before World War II begins in earnest. Lieutenant Colonel Yuuki of the Imperial Japanese Army forms the "D Agency," an army intelligence outfit under his command and tutelage. Army General Staff attaches Lieutenant Sakuma to observe the unit's performance. D Agency casts a wide net to find agents beyond Japanese military personnel, and Yuuki establishes D Agency's tenets, which go against IJA doctrine: "Don't kill, don't get killed, don't get captured." With this, Yuuki trains a team of operatives who conduct missions against domestic and foreign powers. (Source: Anime News Network)
Joker Game is a Japanese anime of 44,708 characters, with 3,838 unique words and 1,259 different kanji. Its difficulty rating on Jiten is hard, 3.4 out of 5. The full vocabulary list ranks all 3,838 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.