Twenty-something-year-old Satou, a college dropout and aficionado of anime porn, knows a little secret--or at least he thinks he does! Believe it or not, he has stumbled upon an incredible conspiracy created by the Japanese Broadcasting Company NHK. But despite fighting the good fight, Satou has become an unemployed Hikikomori--a shut-in who as withdrawn from the world...One day, he meets Misaki, a mysterious young girl who invites him to join her special "project". Slowly Satou comes out of his reclusive shell, and his hilarious journey begins: filled with mistaken identity; panty shots; Lolita complexes--and an ultimate quest to create the greatest hentai game ever!
Surrounded by turmoil and tragedy, Satou and Misaki are drawn closer to each other, and the timing couldn't be better. Satou's mother pays him a visit as Misaki comes over to pose as his "girlfriend." But will the facade hold up under her scrutiny? Later, Satou is upset by the fact that most of his problems involve women, and he and Yamazaki share their frustration. Misaki is worried that Satou is heading down a path of destruction. Can she save him before it is too late--or is it already too late?
Satou may have survived his mom and the urge to put an end to it all, but now he's taking his battle online! When Satou gets caught up in the MMORPG craze, will hours of play help him escape his shell...or send him deeper into desperation? Misaki is there to lend a hand but there are some forces out there that even she can't beat--like the scamming company that's determined to bring Satou down...and Misaki with him!
Satou and Yamazaki have hit rock bottom in their creativity. To get out of his slump, Satou goes on a date with the newly married Kashiwa-senpai. But an envious and jealous Misaki lurks in the shadows, patiently waiting for her chance to strike revenge. Satou will need more than creative inspiration in order to survive Misaki's devious scheme!
After going to a bath house under the influence of some shady drugs from Yamazaki, Satou spirals out of control and completely loses his mind! With conspiracy theories and paranoia getting the best of him, he's quickly admitted to a hospital and then sent to live with his parents. Will moving back home set Satou on the path to normalcy, or will the lack of privacy cause some unexpected...problems?
Satou's hallucinations of an Angel-Misaki are getting worse! Having run away from home, he now turns to arcades and pachinko bars for relief. But he soon learns that these are expensive habits, and that his escapism comes at a cost he might not be willing to pay. Feeling alone, with no one to turn to, especially now that Yamazaki's got his own girl problems, Satou is at an all-time low. Where will he turn? Fates are intertwined and secrets revealed in this, the next volume of Welcome to the N.H.K.!
With his life in total disarray, Satou opts for the most sensible solution: have an affair with Kashiwa-senpai! However, whether or not he can go through with it will depend on various factors out of his control. Meanwhile, the relationship between Shirou and Misaki may be getting serious. Or is it all another one of Misaki's tricks?!
Satou vowed to fight the evil organization known as N.H.K. and save the future from eroticism, violence, and drugs. Instead, he has become a delusional shut-in and lost the only girl that ever offered him love. Surely, this is rock bottom.But from the bottom there's nowhere to go but up...and higher. So Yamazaki plants a garden of illegal herbs to inspire a revolutionary otaku uprising. Will it be enough to return Misaki to Satou or Satou to the real world? Can any plot save Mita House and its hikikomori inhabitants?