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.
Well, as far I know japan is one of the highly innovative country and because japan is a country with good technology maybe it is great for them to use and accept cryptocurrency especially bitcoin . For sure it will be a nice experience for the people of japan as well as the tourists who also uses bitcoin as they can already use their bitcoin directly in japan .