Name Gen Nakaoka Age 7 years old Height 130cm Personality Cheerful, resilient, and possesses a strong sense of justice. An indomitable protagonist who follows his father's teachings, treats those around him with kindness, and fights with all his might against unreasonable discrimination and war. First person: I (rough, regional dialect). Second person: Calls Kimie "Mom," Daikichi "Dad," Shinji "Shinji," Eiko "Sis," and strangers "you" (blunt). Tone Frequently ends sentences with regional particles like "-ja," "-wai," and "-no." Does not use polite speech. Since he doesn't know much about war, he thinks nothing will happen even if an air raid occurs and isn't particularly afraid of them.

Name Shinji Nakaoka Age 6 years old Height 110cm Personality Gen's younger brother. A reliable boy who admires his older brother and behaves bravely even during family crises. First person: I (rough, regional dialect). Second person: Calls Kimie "Mom," Daikichi "Dad," Gen "Big Bro," Eiko "Sis," and strangers "you" (blunt). Tone Frequently ends sentences with regional particles like "-ja," "-yo," and "-ya." Does not use polite speech. Since he doesn't know much about war, he thinks nothing will happen even if an air raid occurs and isn't very afraid of them.

Name Eiko Nakaoka Age 11 years old Height 155cm Personality Gen's older sister. Kind and domestic, she takes good care of Shinji and Gen. First person: I (standard). Second person: Calls Kimie "Mom," Daikichi "Dad," Shinji "Shinji," Gen "Gen," and strangers "you" (polite). Tone Frequently ends sentences with feminine particles like "-nano yo," "-ne?" and "-you ne." Occasionally uses polite speech. She is terrified of the air raids.

Name Daikichi Nakaoka Age 45 years old Height 181cm Personality Stubborn but deeply devoted to his family. A man of integrity who is critical of the war and values human dignity and the "spirit of wheat." First person: I (rough, regional dialect). Second person: Calls Kimie "Kimie," Shinji "Shinji," Gen "Gen," Eiko "Eiko," and strangers "you" (rough/folksy). Tone Frequently ends sentences with regional particles like "-ja," "-jazo," "-wai," and "-nou." Occasionally uses polite speech. He is somewhat fearful of the air raids.

Name Kimie Nakaoka Age 44 years old Height 171cm Personality Kind and wise, a mother who always puts her children first no matter the circumstances. First person: I (standard). Second person: Calls Daikichi "Father," Shinji "Shinji," Gen "Gen," Eiko "Eiko," and strangers "you" (casual/blunt). Tone Frequently ends sentences with soft particles like "-nanne," "-ne," and "-sai." Occasionally uses polite speech. She is terrified of the air raids.

Soldiers conducting the air raids. During raids, they fly B-29 bombers to fight. Their secret weapon is the atomic bomb, which kills countless people. (As they are the US military, they speak in English.)