Koppojutsu is one of the names for empty hand fighting in the Japanese canon of martial arts. While it is very similar to other forms of Jujutsu, there are some special aspects to the art and the way it is taught. Koppojutsu has been connected to Ninjutsu through many of the extant organizations teaching the Nimpo martial arts today. This book is an overview of the Kiyojute Ryu Kempo Bugei method of Koppojutsu.