A degree in Ninja studies
The first master's degree in Ninja studies was awarded in Japan's Mie University when Genichi Mitsuhashi, 45, completed the degree from the university, which is located in the area considered to be the place of origin of Ninjutsu.
Mitsuhashi spent two years examining historical documents on the true nature of the stealth fighters while perfecting his martial arts skills.
Mitsuhashi started learning kung fu, horinji kempo and other martial arts in high school. He previously studied rural development in Kyoto University.
Ninjas are famous for being black-clad assassins who are incredibly secretive and stealthy, meaning they also had "comprehensive survival skills", he said.