大象传媒

The ninjas of medieval Japan were masters of martial arts employed by warring states as spies or stealthy assassins.

Now, it seems they're back in demand, with the authorities in one central province placing a wanted ad for six full-time ninjas, to promote tourism. Celia Hatton takes up the story.

(Photo: Ninjas hired by Japan's Aichi Prefecture tourism bureau posing during a photo shoot. Credit: AFP/Getty Images)