Japan Ministry of Foreign Affairs released a new advisory yesterday July 29 about the new procedure to enter here in Japan for foreigners who are stranded due to Travel Ban being implemented now.
According to this advisory, those who go back home before the start of travel ban implementation still holding a valid re-entry permit can enter Japan starting August 5, no matter what type of visa you are holding. For the details of this and steps you need to do, watch this video until the end.
Advisory source (Japanese)
Advisory source (English)
Travel Confirmation Application Form
Certificate of COVID-19 Test Format
01:16 Source of information
04:21 New rules
05:59 Travel Confirmation
08:02 Certificate of COVID-19 Test
11:22 Reminders for exempted in travel ban
12:04 Quarantine in Japan
13:42 Who are not eligible