Ninja studies professor Yuji Yamada said Mitsuhashi was a “dedicated student.”
“He literally (devotes) his life to ninja,” he added.

Mitsuhashi, who wants to pursue a doctoral degree in ninja studies, said the course had taught him about the present, as well as the past.

“Living independently for your own survival and prosperity is important for modern Japan,” he said. “The world for each of us is not global, but local. The era for globalism is over.”