Welcome to the N.H.K. Vol 1 - Welcome to the N.H.K. NHK ni Yokoso!?) is a Japanese novel and manga series written by Tatsuhiko Takimoto, centering around a 22 year old hikikomori who gets aid from a strange girl who seems to know a lot about him, despite never meeting him before. A common theme throughout the story deals with the hardships of life and how people must deal with them in their own way. - answers.com