Earth in the twenty-fourth century. Humanity rebelled against the artificial brain that controlled the world and entered a "changeable period", and on the ground there was a battle between the living who remained in a small base and the dead (zombie) who filled the earth. New human beings Lily, Ken, and Killer have their own missions and destinies, and experience many lives and deaths... What is the Will of the Universe? What is Earth? Is God also just a time traveler? The world of Yu Matsuhisa, full of unique imagination.