Initial D (Japanese: 頭文字Dイニシャル・ディー, Hepburn: Inisharu Dī) is a Japanese street racing manga series written and illustrated by Shuichi Shigeno. It was serialized in Weekly Young Magazine from 1995 to 2013, with the chapters collected into 48 tankōbon volumes by Kodansha. The story focuses on the world of illegal Japanese street racing, where all the action is concentrated in the mountain passes and rarely in cities or urban areas, and with the drifting racing style emphasized in particular. Professional race car driver and pioneer of drifting Keiichi Tsuchiya helped with editorial supervision. The story is centered on the prefecture of Gunma, more specifically on several mountains in the Kantō region and in their surrounding cities and towns. Although some of the names of the locations the characters race in have been fictionalized, all of the locations in the series are based on actual locations in Japan.