YuYu Hakusho (Japanese: 幽☆遊☆白書, Hepburn: Yū Yū Hakusho) is a Japanese manga series written and illustrated by Yoshihiro Togashi. It tells the story of Yusuke Urameshi, a teenage delinquent who is struck and killed by a car while attempting to save a child's life. After a number of tests presented to him by Koenma, the son of the ruler of the afterlife, Yusuke is revived and appointed the title of "Underworld Detective". With this title he must investigate various cases involving demons and apparitions in the Human World, with the manga gradually becoming more focused on martial arts battles and tournaments as it progresses. Togashi began creating YuYu Hakusho around November 1990, basing the series on his interests in the occult and horror films and an influence of Buddhist mythology. The manga was originally serialized in Shueisha's shōnen manga magazine Weekly Shōnen Jump from December 1990 to July 1994. It consists of 175 chapters collected in 19 tankōbon volumes. In North America, the manga is licensed by Viz Media, who first serialized it in Shonen Jump from January 2003 to January 2010. An anime adaptation consisting of 112 television episodes was directed by Noriyuki Abe and co-produced by Fuji Television, Yomiko Advertising, and Studio Pierrot. The anime series originally aired on Japan's Fuji TV network from October 1992 to December 1994, and was later licensed in North America by Funimation in 2001, where it aired on Cartoon Network blocks including Adult Swim and later Toonami. The series has also been published and broadcast in various other countries around the world. The YuYu Hakusho franchise has spawned two animated films, a series of original video animations (OVAs), a live-action television series, audio albums, video games, and other merchandise. YuYu Hakusho has been well received; the manga has over 78 million copies in circulation worldwide, making it one of the best-selling manga series of all time. It also won the 39th Shogakukan Manga Award for the shōnen category in 1993. The animated series won the Animage Anime Grand Prix prize for best anime in 1994 and 1995. The series has been well received by a large audience in Japan and a wide range of age groups in the United States. The anime has been given mostly positive reviews by critics in North America, complimenting its writing, characters, comedy, and amount of action.