Tsutomu Nihei is a Japanese manga artist born in 1971, renowned for his dystopian science fiction works featuring monumental architecture and bleak, posthuman worlds. His debut series Blame! (1998-2003) established his signature style: vast megastructures, minimal dialogue, and protagonists wandering through endless technological labyrinths. Nihei's intricate, heavily detailed linework creates oppressive atmospheres of isolation and scale. His background as an architect profoundly influences his world-building, crafting impossibly complex cityscapes that dwarf humanity. Other notable works include Biomega, Knights of Sidonia (adapted into anime), and Aposimz, all exploring themes of transhumanism, survival, and humanity's relationship with technology through stark, visually stunning narratives.