Ressentiment by Kengo Hanazawa
2015. Following breakthroughs in technology, an online virtual world practically indistinguishable from reality now exists, with artificial intellifence that is no less lifelike, and with the right equipment, one may also live inside it, or rather, feel like living. Its name? Unreal. Predictably, said world is now the refuge of social outcasts.
Takuro is your typical socially awkward virgin man in his thirties with low self-esteem stuck in a dead end job with no relationships and no future prospects to speak of. In short, he's nothing less than what society would deem as a 'complete loser'. One day, having enough of his situation and viewing himself as being pretty much cast out of the real world, he decides to lose himself into the virtual, Unreal, hoping to achieve the happiness that reality never granted him. And thus he meets the girl of his dreams, Tsukiko.
Although the technology is not completely there yet, Ressentiment is a surprisingly prescient and sincere manga about one of the aspects of virtual reality, and how it would be exploited (but not limited to) outcasts, and parallelly depicts the potentials and risks of an ever-increasingly connected world as well as the growth of artificial intelligence. Yet, at its core, it's the simple tale of a pitiful man who grew disillusioned enough to reject reality.
Now, more than ever, read it.