Story: 

    The story of Shonan Junai Gumi deals with the Onibaku (Demon Explosion) duo, consisting of Eikichi Onizuka and Ryuji Danma, and their quest to lose their virginity and reach maturity. They are widely feared bōsōzoku, and are known for their tenacity and viciousness in a fight. However, this lifestyle does not exactly endear them to the opposite gender, so they decide to change their ways. However, this is easier said than done. As the story unfolds, we meet the Onibaku's wide range of friends and foes, and the crazy situations they all get into. The story is initially a gag manga, but more serious issues present themselves as it continues, eventually striking a balance similar to that of GTO (which this manga predates).