Kenji is a manga centered on Kenji, a Japanese teenager who trains in the martial art of Bajiquan, and his interactions with other martial artists, including some historical figures such as Adam Hsu and Liu Chia-Liang. While the series focuses mainly on Baji Quan, it also explores Praying Mantis Kung Fu, Bagua Zhang, Chen Taiji Quan, Pi Quan, Xingyi Quan, Xin Yi Liu He Quan, Shaolin Quan, Hung Ga, Daito Ryu Aikijujutsu, Shotokan Karate, and many other styles. Kenji's rival is a gangster named Tony Tan, who practices Hung Gar and later Xinyiliuhequan.