Set in 19th Century Japan a young samurai who finds himself in love with a farm girl leaves his home to begin a new life. He has to take stock of his new life when he is put to the test and ordered to kill a traitor who just happens to be his dearest friend.

In the final months of World War II, 14-year-old Seita and his sister Setsuko are orphaned when their mother is killed during an air raid in Kobe, Japan. After a falling out with their aunt, they move into an abandoned bomb shelter. With no surviving relatives and their emergency rations depleted, Seita and Setsuko struggle to survive.