It all begins in 1969 when a young boy named Kenji and his friends get together in their secret fort in a vacant lot and write "The Book of Prophecy." In their book, they write about a future where they fight against an evil organization trying to takeover the world and bring about doomsday. Years later in 1997, Kenji is the manager of a convenience store who has given up his dream of becoming a rock star and leads a simple life as he raises his sister’s baby girl Kanna after his sister suddenly disappears. Then one day, his boring life is turned upside down when his old classmate, Donkey dies mysteriously and then an entire family in his neighborhood disappears.