the first japan bill containing virtual currencies is expected to come on april which recognizes bitcoin as a method of payment.Although,it doesnot define bitcoin as a legal currency,it is still considered as a remarkable progress for bitcoin in japan.Hope, most of tourists who would go to japan to see 2020 olympics would be able to pay in bitcoins.
Wow! that was cool 
perhaps, a months from now they can declare it as their legal currency not far to be happen isn't? I guess, it will happen here in my country too, but I think need to more years before it apply.