Great Teacher Onizuka

, in short GTO, is a Japanese shōnen manga series. It was created by Tooru Fujisawa. It was originally published in "Weekly Shōnen Magazine" from May 1997 to April 2002. The story focuses on 22-year-old Eikichi Onizuka. He becomes a teacher at a private middle school, Holy Forest Academy, in Tokyo, Japan. "Shonan Junai Gumi" (lit. "Shōnan True Love Group") and "Bad Company" are other manga series by Tooru Fujisawa. They focus on the life of Onizuka before he became a teacher in "Great Teacher Onizuka". 
A twelve-episode Japanese television drama running from July to September 1998 was created based on this manga. A live-action film directed by Masayuki Suzuki and released in December 1999 was also created based on this manga. A 43-episode anime television series based on this manga aired in Japan by Fuji Television and Animax from June 1999 to September 2000. Both the anime and manga have been licensed in North America by Tokyopop. A second live action series aired in Japan during 2012, and two more in 2014. It won the 1998 Kodansha Manga Award for shōnen category.