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.
This is good news, because there are already accepted asco as a means of payment, hopefully this is a good start so that other countries can follow Japan to accept bitcoin as a digital currency