KOKA, Shiga Prefecture--Like the furtive ninja groups it hosted in feudal times, this city in western Japan still has secrets to spill. In this latest instance, researchers discovered the first ...

For centuries, the ninja has occupied an alluring position in the public imagination. The covert warrior of feudal Japan, a favorite subject of movies and manga, has long been depicted as an agent ...

NAGANO--Hand-copied versions of part of “Bansenshukai,” one of the three major ninjutsu (ninja art) strategy books, were recently discovered at the Sanada Treasures Museum here, leading ...