The story follows the youth of Eikichi Onizuka and his best friend Ryuji Danma while they are still in high school but have already formed their shock duo the Oni-Baku Combi.

By January 2020, Shonan Junai Gumi had over 45 million copies in circulation, making it one of the best-selling manga series in history.

The story of Shonan Junai Gumi deals with the Oni-Baku (鬼爆コンビ, "Demon Explosion") duo, consisting of Eikichi Onizuka and Ryuji Danma, and their quest to lose their virginity and reach maturity.

The series focuses on the Oni-Baku's wide range of friends and foes, and the crazy situations they all get into.

[18] Akita Shoten collected its chapters in 17 tankōbon volumes, published from June 6, 2014, to September 6, 2019.

[3] A five-episode adaptation was made between 1995 and 1997, starring Naoki Miyashita as Onizuka and Yoshiyuki Yamaguchi as Ryuji.

An eight-episode live-action web drama adaptation starring Kanichiro as Onizuka and Daichi Kaneko as Ryuji was released on Amazon Prime Video in Japan on February 28, 2020.