Welcome to the NHK!
17 years ago
Well, I just finished the novel version and, wow, it really is something. Flips from tragedy to comedy and back so easy, but so well, and Satou is how I imagine I'll be in about four years, sans the drug trips (seriously he gets shitfaced about five pages into the book, but all the humor is not stoner humor or some crap like that). If you ever get a chance, pick it up; Tatsuhiko Takimoto wrote it.
What happens is, one day some missionaries come by his house and one of them is a teenage girl, uninterested in the activity. However, later she meets Satou in the park and makes him sign a contract to allow her to cure himself of being a hikikomori. Along the way, he meets up with an old high school friend--his next door neighbor, actually--and they decide to make the best erotic game ever. If it sounds stupid, then my descriptions cannot give it justice, but it starts out good and gets even better.
Oh, and as for the title, the initials stand for the Nippon Hōsō Kyōkai (Japan Broadcasting Association) but the main character believes he's uncovered a conspiracy and that it actually stands for Nihon Hikikomori Kyōkai (Japan Hikikomori Association) and that they're the ones to blame for his being so fucked up, so he vows to fight him. I don't wanna spoil it, but I will say this takes on much more significance later.
Like I said, it fluctuates between comedy and tragedy pretty frequently, kind of like Heller's Catch 22 or some of Vonnegut's works, and, if you've seen the anime or read the manga Sayonara Zetsubou Sensei, then it's got that kind of feel about it. There's also an anime of Welcome to the NHK! as well as a manga if you feel like reading that.