Yuto Naganuma looks silently as the cold sea breeze sweeps over the crumbling walls of the school where his little brother was lost in Japan's devastating 2011 tsunami.<br /><br />Ten years on, Naganuma and others like him form a generation whose young lives were shaped by what is known in Japan as the triple disaster: a powerful earthquake that sparked a terrifying tsunami and the worst nuclear accident since Chernobyl.
