Isaac Asimov's Derec: The Robot City Manga

A man without a memory, stranded on an icy asteroid. His only chance for survival is locked within a band of mining robots who are dutifully searching the surface for a mystrious object known as the Key to Perihelion. His name is Derec. His journey will take him to a city different from any he has ever known. A fantastic metropolis beyond his dreams: Robot City.