Busho Kai Martial Arts & Fitness is a martial arts school in Mansfield, Texas offering karate, Brazilian Jiu-Jitsu, BJJ, and self-defense training. Founded more than 30 years ago by Hanshi Ivan Lewis, the school operates from a state-of-the-art facility and serves students of all ages. Ivan Lewis is an 8th Degree Black Belt with more than 43 years of martial arts experience.