Bill M. Ryusaki，Bill Ryusaki was born in Kamuela on the big island of Hawaii. He has total of ten siblings, many of whom, as well as his father are martial arts masters. Bill started training in two types of karate at the tender age of 8, and later added Kenpo Karate to his arsenal. His teachers would later include William Chow, Bill Chun Sr., and Marino Tiwanak.