"Kenji" is a manga series that follows the story of a Japanese teenager named Kenji, who practices the martial art Bajiquan. As Kenji navigates the world of martial arts, he encounters various practitioners from real life, including Adam Hsu and Liu Chia-Liang, and delves into multiple styles such as Praying Mantis Kung Fu, Bagua Zhang, Chen Taiji Quan, Pi Quan, and others. Kenji's path is complicated by his nemesis, Tony Tan, a gangster who practices Hung Gar and later Xinyiliuhequan, leading to intense confrontations and a deep exploration of the martial arts world.