One day, the uploader received an abrupt video data on their smartphone. It was a recording of the uploader participating in bullying during their high school days. There was an unusual footage included.The uploader and their companions visit an air raid shelter. Along the way, they come across a suspiciously abandoned suitcase. By chance, they are able to unlock it, but inside they find blood-stained towels and a large number of pills, giving off a suspicious odor. Later, the uploader and their companions fail to notice it, but the sound of a baby crying can be heard, and then...A video recorded on a certain videotape. A man brought several tapes to the uploader, who was offering a digitalization service for videotapes. Among them, one contained a video that was accidentally discovered during the digital conversion process