The first thing that comes to mind when thinking of mushroom clouds is the terrible power of the atomic bomb. In fact, the atomic bomb was not initially invented for this detestable war. Dietrich Wegner made the best defense for the mushroom cloud and turned it into a lovely children's wooden house. The world of children is always so innocent and carefree; in their eyes, this is a place full of happiness where they can play passionately. We sincerely wish that this kind of joy could be present not only in the world of children.