Futuristic Novel Explosion 1-4

This is an integrated version of four consecutive short stories from publication 1 to publication 4 of the near-future super short story "Explosion". To make it easier to read, we added an automatically moving caption (subtitles) and made it possible to change the speed to three levels. It's convenient because you can read them all at once. Additionally, there is a GPS map with red line connections between two points in the appendix.