A decade ago, Sakae Kato stayed behind to rescue cats abandoned by neighbours who fled the radiation clouds belching from the nearby Fukushima nuclear plant. He won't leave.
"I want to make sure I am here to take care of the last one," he said from his home in the contaminated quarantine zone. "After that I want to die, whether that be a day or hour later."
Before making the four-hour drive back to her new home, Unuma visits the Ranch of Hope, a cattle farm owned by Masami Yoshizawa, who defied an order to cull his irradiated livestock in protest against the government and Tokyo Electric Power.
Among the 233 bullocks still there is the last surviving bullock from the 50-strong herd Unuma used to tend, and one of her last living links to the life she had before the disaster.
Her bullock ignores her when she tries to lure him over, so Yoshizawa gives her a handful of cabbage to try to tempt him.
"The thing about cattle, is that they really only think about food," Yoshizawa said.