Of the thousands of workers who have answered the help-wanted ads at Fukushima Daiichi, the ruined and radioactive nuclear power plant in northeastern Japan , the part-time lettuce farmer and occasional comic-book artist Kazuto Tatsuta must be among the least likely. “I needed a job,” Mr. Tatsuta, 51, recalled of his decision in 2012 to accept work at the site of one of the world’s worst nuclear accidents. His duties included welding broken water pipes and inspecting remote-controlled robots that survey radioactive hot spots. And his comic strips, once populated with baseball players and gangsters, now tell stories of middle-aged, blue-collar men like himself who do the grunt work at Fukushima, some of whom find a sense […]