About entry restrictions:
The Japanese government has imposed entry restrictions for international travelers from some countries and regions. Check here for more information.
About visa suspensions:
There is also a temporary suspension of the issuance and validity of visas for some countries and regions. Please here for the latest status.
If you enter from the following countries, you will need to wait 14 days at a location designated by the quarantine station and you cannot use public transportation in Japan.
(1) China (including Hong Kong SAR and Macau SAR)
(2) South Korea