Hōzōin-ryū (宝蔵院流) is a traditional school (koryū) of Japanese martial arts that specializes in the art of spearmanship (sōjutsu). Hōzōin-ryū was founded by Hōzōin Kakuzenbō In'ei in c. 1560. In'ei was a Buddhist monk of Kōfuku-ji Temple in Nara, Japan. He adored martial arts and trained in the art of swordsmanship. At the same time, he was coached and mentored by Daizendayū Moritada (大膳太夫盛忠), a master of the spear. Under this master's guidance, In'ei honed his spearmanship.
In'ei watching the reflection of the moon. One Hundred Aspects of the Moon, by Yoshitoshi
Hōzōin Kakuzenbō In'ei was a Buddhist monk and sōhei, abbot of Hōzōin temple, and guardian of all the temples of Nara. In the 1560's he founded Hōzōin-ryū, a school which taught the art of the spear, also known as Sōjutsu.
In'ei watching the reflection of the moon. One Hundred Aspects of the Moon, by Yoshitoshi