Please contact your local Japanese embassy or consulate as well as your airport of arrival’s immigration office before flying to Japan.
You need to confirm that your travel documents are fine and that you’ll be allowed entry to Japan.
Do ask if you need to go through a 14-day quarantine period on arrival.
Please contact your airport of arrival’s immigration office to confirm that your housing is suitable for quarantine.
If you have booked a room in a sharehouse, contact your sharehouse manager to confirm that you are allowed to move-in during your quarantine period.