I have begun to translate for the first time into English this very important manuscript produced by Shodai Soke Okuyama Ryuho on the secrets of his Hakko-ryu. This manuscript is broken into four sections where Okuyama Sensei gives an overview explanation of the secret points for each of the main areas of training in this school included in this manuscript. Goshinjutsu, Taihojutsu, Jujutsu, Koho Shiatsu Igaku, and his views of how to train the general public.
Goshin Taiho no Hiden 護身逮捕の秘伝 (Secrets of Self-Defense Arresting)
Hakkō Ryū Jūjutsu 八光流柔術 (Eighth Light System of Self-Defense)
Bunkabito no Jōshiki 文化人の常識 (Common Sense of Cultured People)
Kohō Shiatsu Rinshō Iten 皇法指圧臨床医典 (Imperial Law Finger Pressure Clinical Medical Dictionary)