Six Four
| Author | Hideo Yokoyama |
|---|---|
| Original title | ロクヨン |
| Translator | Jonathan Lloyd-Davies |
| Language | Japanese |
| Series | Prefecture D Series |
| Genre | Crime thriller, mystery |
| Publisher | Bungeishunjū |
Publication date | October 25, 2012 |
| Publication place | Japan |
Published in English | February 7, 2017 |
| Media type | |
| Pages | 576–656 pages depending on publisher |
| ISBN | 1250160006 |
| Followed by | Prefecture D |
Six Four (ロクヨン, Rokuyon) is a crime/mystery novel written by Hideo Yokoyama in Japanese and published in 2012. It was the first of his novels to be translated into English. The novel follows detective Mikami as he prepares for a visit to one of the top police officials in Japan. In fulfilling his duties, Mikami is plagued by responsibilities and conflicts that arise among the reporters, Administrative Affairs, and Criminal Investigations.
The title Six Four refers to the year Shōwa 64 during which the main case took place. This is not a Gregorian calendar year but a year in the Japanese imperial era naming system, nengō. The Gregorian calendar date for Shōwa 64 is 1989, the last year of the Shōwa period (1926-1989).