E3 Jiu-Jitsu is a martial arts school in Overland Park specializing in Brazilian Jiu-Jitsu instruction. The school offers a beginner program designed to build a strong foundation, youth Brazilian Jiu-Jitsu classes centered on self-defense, discipline, and respect, and training in traditional gi jiu-jitsu. E3 Jiu-Jitsu also provides free classes for bullied children in the Kansas City metro area.