@Rachel_Thorn yea I came to Japan each year during pandemic and Japanese entry policy changed each time. 2020 was you take PCR prior to getting on board and antigens test at Narita then 2 weeks of self quarantine. 2021 was PCR plus antigen test but 10 days of quarantine. 2022 (after Nov) no PCR nor antigen test nor quarantine as long as you have 3 shots. Having booster doesn’t guarantee no positive result 🙄 as I got COVID in June.