Tatsuhiro Satou

The Protagonist of  Welcome to the NHK , Satou is a 22-year old man with strong paranoid and anti-social tendencies, leading to his becoming a hikikimori (a shut-in). His social agorophobia is so strong that he has deluded himself into believing the existence of an evil organization whose only goal is his social confinement, a society he names the NHK (Nihon Hikikimori Kyoukai, or the National Hikikimori Society). His attempts to uncover this organization ironically lead him to retaliate in ways which only deepen his paranoia. Due to his paranoid and yet oddly naive nature, Satou often finds himself in odd situations throughout the series.