Legendary sourcebook of ninja secrets discovered in Japan
On June 19th, 2022, municipal government officials in 甲賀市 Kōka City, Shiga Prefecture, famous for being a center of ninja heritage, announced that a manuscript…
Koka City
On June 19th, 2022, municipal government officials in 甲賀市 Kōka City, Shiga Prefecture, famous for being a center of ninja heritage, announced that a manuscript…