Sonezaki Shinjuu of Kawashita Mizuki

Based upon the play of 'The Love Suicides at Sonezaki'. Hatsu's father sold her to a brothel when she was young. Her childhood friend Toku tries to earn the money to buy her out of there to marry her. However, many obstacles stand in their way. - mangaupdates.com

Welcome to the N.H.K. Vol 4

A mysterious girl who claims to be a volunteer of a "charity project" to help hikikomori individuals like Tatsuhiro. She has the tendency to lie, such as hiding the fact that she dropped out of high school, but she does not do so to mean any harm. She will tell Tatsuhiro whatever it will take to make him pay attention to her. She seems to have a deep attachment to Tatsuhiro, and has a dramatic personality disorder. She gives two indicators of her past, the first being her confession that she needs Satō because he is worse than her, and the second is that on occasions when Tatsuhiro raises his fist as if to strike her and she flinches in response as if she had been beaten before. - answers.com

Welcome to the N.H.K. Vol 5

The story's protagonist, at 22 years old, he has entered his third year of being a hikikomori and is a NEET. One to have psychotic thoughts, he believes that his unemployment and dropout are the works of NHK's conspiracy. He lives in his rented apartment, but depends on his parents for money. Under the influence of his neighbor, Kaoru Yamazaki, he has become a lolicon otaku, and helps Yamazaki on the script of their adult game - answers.com

Welcome to the N.H.K. Vol 6

Misaki Nakahara in her School uniform though she really doesn't go well in attending school at all..

Welcome to the N.H.K. Vol 7

Welcome to the N.H.K. volume cover 7 featuring Tatsuhiro Sato and Misaki Nakahara.

Voices of a Distant Star

Makoto Shinkai's animated science fiction film Voices of a Distant Star concerns a fighter pilot who travels into space to fight in an alien war. Mikako braves death in battle while her great love Noboru stays on earth. Their only communication is text-messages. Due to the theory of relativity, Noboru ages years at a time between visits from Mikako, while she ages just days or weeks at a time.~ Perry Seibert, All Movie Guide - answers.com

Welcome to the N.H.K. Vol 1

Welcome to the N.H.K. NHK ni Yōkoso!?) 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

Welcome to the N.H.K. Vol 2

Tatsuhiro's senpai in high school, now a public servant. Due to stress, Hitomi develops a dependence on drugs. Hitomi met Tatsuhiro when she persuaded him to join the Literature Club, though most of the time they only ever played card games. She has always been fascinated by the concept of conspiracy theories and is one of the reasons Tatsuhiro suspects the conspiracy against himself by the N.H.K. She attempts a suicide through an internet suicide pact called the Offline Meeting Notice (an Offline Meeting is a slightly slang term for a meeting of people who have met on the internet, not really having much to do as a pun for "shutting one's life off like a computer"). However, she changes her mind after her boyfriend proposes to her. She gets married and has a healthy kid. - answers.com

Welcome to the N.H.K. Vol 3

Tatsuhiro's former kouhai (Junior) in high school, who is an otaku. Tatsuhiro once stood up for him when he was still in middle school being beat up by some bullies, since then, he respected him greatly and decided to join the literature club with him when he went into high school. He is currently Tatsuhiro's neighbor and a college student aspiring to be a game creator. He made Tatsuhiro join his dōjin soft eroge project, and was also responsible for turning Tatsuhiro into an otaku. His family owns a sizable farm in Hokkaidō. Later, he is forced to return to the farm due to his fathers sickness; at that point, realising he has no hope of continuing any aspect of his life in Tokyo, he drives away his crush, Nanako. In the end of the story, he is living happily at his parents farm and also currently dating a girl who looks exactly like Nanako whom he hopes to marry in the future. - answers.com