The film shows the bombing of Hiroshima and the horrific aftermath following the detonation of an atomic bomb on humans for the first time in history.

• Japan Teachers' Union
• Isuzu Yamada
• Eiji Okada
• Yoshi Katō
• Yumeji Tsukioka
• Yasumi Hara
• Shizue Kawarazaki
• Hatae Kishi
• Harue Tone