Japan is well known for its expensive transportation fee. If you are from a country where requires you to pay a lot for using public transportation you will not be surprised by Japanese system as well. On the other hand, you will get shocked if you came from a country where you can use transportation with low fee. In some countries, you can transfer from one to another, for instance, from subway to bus, without paying extra charge. However, there is no such concept of free transfer in Japan so that you will have to pay every single time you use subway or bus.
