It's the year 2177. The world has succumbed to highly evolved artificial intelligence and it's nearing extinction. Humanity has been using this highly evolved A.I. as slaves until a rogue group of machines under the leadership of the"Glass Mind" fought and won against the human governments. Two malfunctioned humanoids developed love and admiration for humanity and decided to travel back to the year 2015 to warn humanity, through music, of it's fate. Their aim is to protect the future of humanity and create a world where man and machine can live together in perfect harmony.