Koga Ryu Ninjutsu
History of Modern Koga Ryu
Kōga-ryū (甲賀流, "School of Kōga") originated from the region of Kōka (modern Kōka City in Shiga Prefecture). Members of the Koga School of shinobi were trained in disguise, escape, concealment, explosives, medicines and poison; moreover, they were expert in techniques of unarmed combat and in the use of various weapons.
It is important to understand that currently there are no Koryū (Old) active ninjutsu systems. Except for the descendants of the Koga families, no ninjutsu systems survive the Civil Wars in Japan. This is especially true about the Iga Ninja. The historical record is clear in this subject.
As of today, the only person that has presented documentation connecting his family lineage to one of the families of Koga and has been acknowledge formally by the Japanese government is Jinichi Kawakami of the Banke Shinobi Den and curator of the Iga Museum. Before Kawakami, the last person who was recognized by the Japanese government was Fujita Seiko Soke, who died in 1966 from cirrhosis of the liver (not a car accident with his students) at about the age of 68. Because Seiko soke did not appointed a formal successor to his ryū, some people have push forward the idea that line of Koga Ryū Wada Ha ended with his dead.
Also it is important to mention the contributions of Yumio Nawa sensei who kept some aspects of the art active and Donn Draeger, the first American who was trained in Koga Ryū Wada Ha.