Analysis: Welcome to the N.H.K.

-The idea of the "NHK" is a metaphor for the driving force in one's life. Sato's multiple names for the organization all are linked to other characters and describe their fatal flaws, with his own being NHK because of his anti-social lifestyle. In the end, Sato and Misaki's NHK is renamed to the National Hostage Association because their driving force is surviving for the sake of the other.