Naoto Matsumura has been living in the no-go zone around the crippled Fukushima No. 1 plant since tens of thousands of residents evacuated to flee the high radiation.
He took on the task of feeding and caring for abandoned cattle whose owners were ordered to evacuate after the March 11, 2011, Great East Japan Earthquake and tsunami triggered the meltdowns at the plant.
"I said I would take care of them, so I can't back down now," he said.