Densha Otoko, or 'Train Man' was a 2-channer who helped out a group of ladies from being harassed from a drunk guy on the train. One of the ladies ends up sending him a thank-you present (Some pretty high-class stuff). He wants to thank her for the cups, but was having difficulty doing so, since he was quite a big geek at the time. So he ends up asking his fellow channers for advice. Over the course of around 2 months, he sheds out of his geeky shell and gets into a full blown relationship with the woman. His whole experience was then turned into a movie, tv series, manga, and novel, which I just finished reading yesterday.