The five members of Group 1 set out for summer camp and they start telling scary stories. Satoru talks about Balloon Dogs, creatures capable of causing themselves to explode although the other children doubt their existence, rationalizing that none would exist if they all blew up. The children recall the legend of a strange creature known as the "False Minoshiro" which brings death to all in its path. Venturing further than they should, they to locate a multicolored Minoshiro and Saki manages to capture it. Much to their surprise, it can communicate with them and it reveals that it is a repository of information.