Originally Posted by
CPH-Flyer
Pre-pandemic, you could indeed get a visa to enter Japan for an overnight stay due to the connection. Right now there is an in principle denial of landing for all foreigners.
This was from Taiwan transiting overnight at NRT with US/Canada as the final destination during the pandemic. JL would sponsor and help secure a visa for staying overnight landside. I don't remember the exact details but I remember seeing it on JL's homepage or mentioned on their official FB page for the Taiwan market. IIRC I came across this around 2021 June.