Great Teacher Onizuka: The Early Years

Source taken from animenewsnetwork.com

Eikichi Onizuka and Ryuji Danma are the deadly duo, Oni-Baku (Demon Explosion), with the sole mission of losing their virginities. As they turn away from the gang life to accomplish this, old enemies resurface to haunt them, and new ones appear to take their fame.

Before taking the women, Oni-Baku must first show their adversaries exactly who is the baddest in Shonan Beach.Ekichi Onizuka and Ryuji Danma are members of infamous biker gang, Oni Baku.

Great Teacher Onizuka

Source taken from Wikipedia.org

Great Teacher Onizuka (Gurēto Tīchā Onizuka?), officially abbreviated to GTO, is a Japanese shōnen manga written and illustrated by Tohru Fujisawa. It was originally serialized in Weekly Shōnen Magazine from May 1997 to April 2002. The story focuses on 22 year-old ex-bōsōzoku member Eikichi Onizuka, who becomes a teacher at private high school Holy Forest Academy, in Tokyo, Japan.

It won the 1998 Kodansha Manga Award for shōnen, and is a continuation of Tohru Fujisawa's other manga series Shonan Junai Gumi (lit. "Shōnan True Love Group") and Bad Company, both of which focus on the life of Onizuka before he becomes a teacher in Great Teacher Onizuka. As of 9 June 2009, a sequel to the GTO manga was released in Kodansha's Weekly Shōnen Magazine under the title "GTO - Shonan 14 Days".