Yuji, a high school teenager is found with an incurable new virus; but it does not mean to say that his LIFEis finished. He decided to hope for the future and goes into a long sleep by artificial hibernation. The time is 2013 - Yuji is awake, to find himself thrown amidst a war - a time of despair, a time of death.
The earth is full of BLUE, a mysterious creature that ate anything for food including human beings. Men were on the verge of extinction, and those that were left evacuated to the space station. The only way for humans to servive was to destory BLUE!
Not knowing what is happending, Yuji begins has battle for LIFE - a battle for the human race to survive.