Keiko Ogura, age 85, has spent her life talking to the world about her experiences as an A-bomb victim in Hiroshima. Feeling helpless in the wake of the Russian invasion of Ukraine, she decides to participate in a symposium in a small college town in Idaho, U.S.A., where many people accept the existence of nuclear weapons. Determined to hear their side of the story, she engages in dialogue and discovers circumstances she had never understood before. When it's her turn to give a presentation, how does she convey her own beliefs?