Daito-ryu is a Japanese core style from which many modern variations have sprung. Shorinji kempo, hapkido, Kodokan judo and aiki are martial arts that were originated by disciples of daito-ryu that have since splintered into numerous modern variations of their own. Daito-ryu aikijujutsu is one such splinter style that has somehow managed to adhere to the traditional teachings of its core style forerunner (daito-ryu) and its predecessor (aiki). But because of its adherence to tradition—and its insistence on retaining most of the more painful and deadly self-defense techniques—the martial art has remained relatively obscure. Although there are several thousand disciples of the art in Japan, daito-ryu aikijujutsu is almost totally unknown in the United States. Most senior students of modern aikido know that their art descended from daito-ryu, but many are under the impression that the daito system became extinct several generations ago.