The story takes place over a 24 hour period. In the southernmost part of Japan, 20 fishing boats of an unknown nationality suddenly fire upon and occupy parts of the Hateruma archipelago. Members of the Japan Coast Guard are detained. Under the extremely tense situation, the Japanese government sends Aircraft Carrier Ibuki and an escort fleet to the area. Ryota Akitsu (Hidetoshi Nishijima) is the captain of the Aircraft Carrier Ibuki and Toshiya Niinami (Kuranosuke Sasaki) is second-in-command. It is now 6:23 am. and Japan faces one day which they never have before.

A university student has the usual dreams and aspirations. It turns out to be a pipe dream and so she murders her own flesh and blood. The usual media heads seek an answer in order to sell copy. A psychologist is writing a book about the character and incident. Her research for the subject matter turn the psychologist inward and things come out of the shadows that perhaps are better left buried deep in the shadows of the psyche.