It's about young people in postwar Hiroshima getting involved in the black market for weapons. The main character is an A-bomb survivor whose hatred drives him to kill an American black marketeer. He asks the Americans, "Who are you to talk about justice when you massacred hundreds of thousands of innocent people in Hiroshima, in Nagasaki, in the firebombing of Tokyo? Was that what you call justice?"
(Source: MU)

The childhood of Keiji Nakazawa dies on a sunny Monday morning. The biggest mass destruction weapon in human history is thrown at the Japanese town Hiroshima. 20 years after the incident Nakazawa begins to work up the gruesome events of his childhood and begins to draw manga.

(Source: MU)