Alright, imagine a time many years ago when there was a really big war happening. This war was between different countries, and one of the countries had a special kind of bomb that was really powerful and dangerous.
Now, in one of the cities of that country called Hiroshima, something very scary and terrible happened. You see, a big airplane dropped that powerful bomb right on top of Hiroshima, and it caused a huge explosion.
After the explosion, many buildings and houses were completely destroyed. People who were in Hiroshima at that time got hurt very badly, and some even lost their lives. It was a very sad and scary time for everyone there.
Now, a Hiroshima witness is someone who was actually there in Hiroshima when this terrible thing happened and saw everything with their own eyes. They can tell us what exactly happened, how it felt, and what it looked like.
These witnesses can tell us stories about the moments before the bomb dropped, the loud noise it made, the bright light it caused, and the devastating damage it caused to the city and the people living there.
Their stories help us understand the real impact of what happened in Hiroshima and how important it is to work towards peace and prevent such terrible things from happening again in the future.
So, these Hiroshima witnesses play a very important role in teaching us about history, the consequences of wars, and the importance of living in peace. We should listen to their stories, learn from them, and remember the tragic events that occurred in Hiroshima so that we can make a better world for everyone.