This is an animation that depicts as its motif the explosion of the Space Shuttle Challenger, which the creator witnessed in 1986 when he was a young boy on television in real time. Actual voiceovers from the time of the accident have been used effectively in this low-key animation, in which all of the frames have been created using drawings, featuring only abstract shapes and colors. By taking an actual incident as its motif, this work symbolically represents the tragedies that occur in the progress of human development.