Tourists from all countries or regions can visit Japan on a package tour (including a non-guided package tour). Those who obtain a valid vaccination certificate are not required to get a Covid-19 negative test certificate (the test must be conducted within 72 hours prior to your scheduled departure time).
Now you have TWO options to visit Japan
●Guided package tour
●Non-guided package tour: a travel agency arranges round-trip air tickets for participants entering and leaving Japan and ALL accommodations during their stay.
All information here is gathered from the relevant authorities. Due to the regularly changing situation, it is essential for you to check and follow the latest guidance.
Find out more
JNTO
https://www.japan.travel/en/practical-coronavirus-information/tourists/
Japan Tourism Agency
https://www.mlit.go.jp/kankocho/en/shisaku/kokusai/traveltojapan.html