Whether it was 40 years or 4 months ago, those who remember their first date will most certainty bath in the glow of empathy with this sweet little movie. It'll be an added bonus for those who are watching it with still the same person.
But there's more. To the still uninitiated, this little gem is an eye-opener to the culture of Internet chat room. Through skillful interplay between split-screen and full screen, a group of our hero's best chat mates is shown to be his council of courtship advisors. This comprises a passionate young nurse, a young man (student, presumably) who locks himself up in his room with the computer most of the time, a man and a woman at their late twenties or early thirties (an office worker and a housewife respectively) and a group of three young chaps, the official clowns of the movie. We soon see how they are emotionally very involved with our hero's joys and woes, hopes and fears, which have become very much part of their own lives. There's also one nice little spoiler that is unveiled quite early in the movie.
Our hero is a young "otaku", a term (neutral rather than derogatory) used to describe people who are so indulged in the virtual world of comics, animation and computer games that they have lost touch with real human beings, manifested in their acute shyness and inability to communicate with others. All these change when he, with a sudden surge of impulse, helps a lovely lassie that is molested by a drunken passenger on a train. The courtship is innocent and sweet, completely opposite to the other genre where the protagonists jump right into bed an hour after they first met. It's also funny, in a nice, gentle sort of way.
One IMDb comment mentions that the character of the girl "Hermes" (nicknamed so because she sent him a set of Hermes cups to thank him) has not been as developed as even the supporting characters, and adds that this is perhaps intentional. I think so. The focus of the movie is on our hero the "Train man" and, to a lesser extent, the supporting characters. Hermes is an idolized figure and her sweet, composed charm contrasts perfectly with his nervous, tantalizing uncertainty. Incidentally, in the stage version of this true story, she doesn't even appear in person but is only a voice off- stage.
Starting as a true story, "Train man" has taken Japan by storm, in every media conceivable Internet story, comic, book, movie, stage play and, last but not least, hugely popular TV drama starring gorgeous Ito Misaki.