Densho means special secret book. This book contains ALL true Shoden patterns from Gyokko Ryu complete with color photos. Explanations are in both English and Japanese.
Gyokko Ryu is a famous school of Kosshi-jutsu (called “Shito-jutsu” in older times) and is also known as Gyokko Ryu Ninpo – which was the source of Haku-un Ryu Ninpo from Iga. Gyokko Ryu is also the oldest school of Kosshi-jutsu and is the source of almost all Ninpo Taijutsu. Takamatsu Sensei taught that Koto Ryu Koppo-jutsu, Gyokushin Ryu Koppo-jutsu, Gikan Ryu Koppo-jutsu, Iga Ryu and Koga Ryu all descended from Gyokko Ryu.