Shounan Jun'ai Gumi
Tohru Fujisawa
Kodansha (Japan)
Tokyopop (Canada, US)

Shounan Jun'ai Gumi (Manga)Edit

Before the adventures of Great Teacher Onizuka, Onizuka and his friend Ryuji are on a quest to lose their virginity and become mature adults. However being known as the Onibaku, a duo of violent fighters, is not that appealing to the opposite sex. This manga goes through the many adventures and fights before Onizuka was known as the Greatest Teacher in all of Japan.

Note: Timeline wise the order is: Bad Company > Shounan Jun'ai Gumi > Great Teacher Onizuka. Also there is a one episode live action called Shounan Junai-Gumi! Bad Company