The Antarctic thaws, marking an era in which most of the land has been submerged under water. The extinction of Mankind is already drawing near. Mankind, who were born from Adam and Eve, are now deteriorating as they are repeatedly cloned from generation to generation. Things essential for the survival of living things have been lost. Even so, the ones remaining cling on to survive... "We should get what we need for survival from something else...!" And so, a mere small group of humans began a new life upon the surface of the water, exhausting the resources of each and every other living thing to survive. In the end, they discover people who possess a huge quantity of things necessary for survival. The young men who possessed such things continue their journey even today, to escape from those who are pursuing them. They just wanted to find that something somewhere. They were seeking the one and only "help" there was...