In English, otaku refers to a variety of geek or fanboy/fangirl obsessed with anime and manga.
While in Japanese the term otaku has negative connotations, in English the term is slightly more flexible; some fans believe it has positive connotations, while other fans believe it has negative connotations, especially on internet forums. Japanophile is a word sometimes used to describe an otaku. Wapanese is a derogatory term that is sometimes used, while others feel many cultures have their own equivalents.
Currently the term otaku is often used as self-description by anime fans with a minute and detailed knowledge. They use it to rally or mock those who have recently begun to watch anime or read manga, and encourage or deride questions on shows and Japanese culture in general.
In modern Japanese slang, an otaku refers to an overly obsessive fan of any one particular theme, topic, or hobby. Perhaps the most common uses are anime otaku (one who sometimes enjoys many days of excessive anime watching with no rest) and manga otaku (a fan of Japanese graphic novels). The term otaku used by itself just means "fanatic". Japanese culture has many other varieties, such as pāsokon otaku (personal computer geeks), gēmu otaku (playing video games), and otaku that are extreme fans of idols, heavily promoted singing girls. Sometimes the term would be used for some hobbies of mechanical or technological area such as tetsudō otaku (metrophiles) or gunji otaku (military geeks), too. While these are the most common uses of otaku, the word can be applied to anything (music otaku, martial arts otaku, cooking otaku, etc). The word maniakku or mania (from English "maniac") is sometimes used to indicate someone whose interest is strong, but not obsessive or unhealthy: anime maniakku, gēmu mania, etc.
The name for a female otaku is otome, which translates as "maiden." A small alleyway of Tokyo's Higashi Ikebukuro district is known as "Otome Road." Otome Road's otome (female otaku or geekettes) are a cross-section of Japanese womanhood, with ages ranging from teenage junior high school girls to housewives in their late 40s. A feature of the area is that there are so many bookstores devoted to comics and books filled with stories about homosexual men, in a genre called Boys' Love or BL. Dōjinshi, manga produced by amateur fans, dominate the shelves along Otome Road, with a significant chunk of the comics' stories about more famous cartoons that imitate, parody or develop on characters who are usually household names in Japan.
An interesting, modern look into the otaku culture has surfaced with an allegedly true story surfacing on the famous internet bulletin board 2ch.net: "Train Man", a love story about a geek and a beautiful woman who meet on the train. The story has enjoyed a compilation in novel form, several comic book adaptions, a movie film released on June 2005 and a television series which aired on Fuji TV from June to September 2005. The drama has become another hot topic in Japan, and the novel, film and television series give a closer look into the otaku culture. A subset of otaku are the Akiba-kei, men who spend a lot of time in Akihabara in Tokyo and who are mainly obsessive about anime, idols and games. Sometimes the term is used to describe something pertaining to the subculture that surrounds anime, idols and games in Japan. This subculture places an emphasis on certain services (see fanservice) and has its own system for judgment of anime, dating simulations ("dating sim") and/or role-playing games and some manga (often dōjinshi) based upon the level of fanservice in the work. Another popular criterion—how ideal the female protagonist of the show is—is often characterized by a level of stylized cuteness and child-like behavior (see moé). In addition, this subculture places great emphasis on knowledge of individual key animators and directors and of minute details within works. The international subculture is influenced by the Japanese one, but differs in many areas often based upon region. (See also: Superflat, Hiroki Azuma.) Since anime in Japan is not as widely accepted as manga, the otaku subculture has much influence over the mainstream anime industry in Japan. The area where otaku have the most influence in manga tends to be with dōjinshi. Manga published in the United States are more influenced by their respective otaku subculture than they are in Japan. This is because most people who read manga have some ties to the subculture in the US, whereas in Japan manga reading is more widespread. See also: anorak.
To indicate that one is talking about the Japanese definition rather than the English loanword, the spelling wotaku (ヲタク) is sometimes used. On Japanese forums such as 2channel, however, otaku (オタク) and wotaku (ヲタク) are used interchangeably, depending on the mood and personal style of the poster.
Otaku is increasingly being used outside of Japan to refer to an individual who is obsessed with technology, a pre-occupation stereotypically assigned to Japanese teens in the early 1980s. For example, demanding U.S. technology consumers are sometimes referred to as American Otaku. This group first reached noticeable prominence in the widespread blogosphere critique of Apple and Microsoft in the aftermath of two disappointing product releases in February and March of 2006.
As otaku make up a good portion of the creative forces behind anime and manga, it is only natural that several works of manga and anime on otaku culture have appeared, often as a light-hearted pastiche. Some of the more famous works include:
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