What an awful experience. I can't imagine going through something like that and remaining silent about it for decades.
If you want to read a novel from the perspective of someone experiencing the bombing of Hiroshima (based on historical records) I highly recommend Black Rain by Masuji Ibuse
If you want to read a novel from the perspective of someone experiencing the bombing of Hiroshima (based on historical records) I highly recommend Black Rain by Masuji Ibuse