In the near future, the main character, Yuji Kaido, has been diagnosed, as other ordinary people, in having an incurable disease. Because there was no cure available at that time they put him with the others alike into hibernation, supposed for a time span of two years. Unfortunately for them, in the mean time Earth got invaded by alien bucks, called "Blue" and most humans got killed. For this reason, humans retreated to a space station called Second Earth. A few decades later, Yuji was awakened by a soldier among other commrades, who was sent down on earth to find the "sleepers" (and there is a reason for it), in other words the ones that had been put into hibernation. The soldier was no other than Marlene Angel, who is the other main character of the show. In the mists of war, a love story will start to evolve around these two main protagonists who will have to go through various dangers and do everything to survive and to safe the world.