Special discount on Shinkansen (bullet train) is available for Tokaido.
For anyone, whether you are fan of Shinkansen or not, ride on Shinkansen (bullet train) is one of "Must Do". Basically, Shinkansen
Flat-rate train tickets in Japan
There is a flat-rate rail pass of JR (Japan Railways), which can be used for all JR network throughout Japan. This ticket is not well known
