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Chekhov’s gun is a literary technique whereby an apparently irrelevant element is introduced early in the story whose significance becomes clear later in the narrative. The concept is named after Russian playwright Anton Chekhov, who mentioned several variants of the concept in letters. Chekhov himself makes use of this principle in Uncle Vanya, in which a pistol is introduced early on as a seemingly irrelevant prop and, towards the end of the play, becomes much more important as Uncle Vanya, in a rage, grabs it and tries to commit homicide.
Check out the article on ‘Red herring’ to learn about the opposite technique.
The major gang bosses are well-known celebrities. Bosses from the Sumiyoshi-kai and the Inagawa-kai grant interviews to print publications and television. Politicians are seen having dinner with them. They own talent agencies that the general public knows are yakuza front companies—such as Burning Productions—but that does not stop major Japanese media outlets from working with them. There are fan magazines, comic books, and movies that glamorize the yakuza, who have metastasized into society and operate in plain view in a way unthinkable to American or European observers.
Tokyo Vice: An American Reporter on the Police Beat in Japan