The train is coming in, but you can't buy your ticket at the ticket machine because you haven't figured out the fare to your destination. You'd better be quick, or you'll miss the train. If you have a prepaid fare card issued by one of Japan's train and subway companies, though, you won't be stuck in a situation like this. Prepaid fare cards are nothing new, but nowadays more advanced types of fare cards are coming into use. They are called Suica and ICOCA. These two related types of cards are really quite amazing. Let's look at how they work and what they can do.