Otaku: a Japanese adjective with which to describe the overly obsessive. In a 21st century context, such obsessions revolve around anime and manga. Such a word would perfectly describe Hifumi Yamada, one of the murder victims in the third case featured in Danganronpa: Trigger Happy Havoc.
His claim to fame involved the successful sale of 10,000 copies of a doujin during a single school culture festival. His ability to dish out pop culture references blows the minds of everyone he meets. And above all, he prides himself in his love of two-dimensional romance (quite literally, in fact). He is, put simply, the embodiment of Japanese pop culture.
Otaku generally get a bad rep among Japanese citizens, however, and are often grouped with people described by the terms hikikomori (meaning shut-in) and NEET (an acronym which means "No Education, Experience, or Training). Otaku are also known to be hoarders of pop culture items. With all that said, the interests which they obsess over are actually pretty popular with the more well-adjusted citizens of Japan; who partake in such activities in all forms, albeit while exercising moderation.
Perhaps more curious is that these activities have transcended the Japanese boundary. Nowadays, people from the Americas, Europe, Australia, and other parts of the world all partake in anime, manga, visual novels, collectible items, conventions, expos, and so on. It has become a global phenomenon; however, it is far from mainstream.
AMMUNITION:
"Anime Becoming Mainstream?"
Those who consider themselves otaku in name only (usually living outside of Japan) often debate whether or not otaku culture should become popularized in the global media arena, and the effects which would result. For example, YouTube videographer Gigguk did a rant of sorts on this topic, in which he made two postulates:
1) Anime and manga consist of elements which inhibit their ability to reach a larger demographic. Notwithstanding the childish/less mature perception of animation in the west, the plethora of high school settings and moe (adorable/cute) attributes dampens the appeal by fans of more serious media.
2) If the elements that make up anime and manga were to change to reflect the larger demographic, larger firms could begin to churn out lower-quality content for the sake of profit, as apposed to delivering quality. This could alienate diehard fans of the genre.
Now granted, these are only the reasoned calculations of one individual, and you will find just as many alternate perspectives as there are people. Others might argue that the content would remain the same even if the medium were to be popularized, still preserving the compelling storytelling and character depth which have been in place for years.
But why is all of this important? How would anime and manga becoming mainstream change society? To tell the truth, a lot of the significance derives from the "reach" of anime and manga. As mentioned earlier in this article, it doesn't stop at these two forms of media; it continues on to visual novels, full-fledged soundtracks, drama CDs, collectible items, even conventions and expos. You don't normally see such variance in franchises of Western fame. You'll rarely, if ever, see a
Walking Dead drama CD or a
House MD visual novel. Nor would you see a convention or public market geared toward fans of the documentary genre (though would be incredibly interesting to attend).
For some reason, anime and manga have this unique ability to become larger than themselves with relative ease, and to provide an experience which ingrains itself on the individuals who come to watch. Each series grows to become something of a cultural movement among its united fans. More than a mere industry, it is an entire dimension of possibilities, and it is for that reason people wish to popularize it.
All that in mind, it is well within the realm of reason to suggest that such trends
could in fact be applied to Western media, but it would take anime and manga being the catalyst before that would begin to happen. Only after the popularization of what is currently deemed "otaku" can other genres step in and try to emulate what's already been done, a case where what is good for the goose is good for the gander.
It may be a hard sell at first, but it would definitely be worth it for fan and creator alike.