Originally Posted by estnet

Good for you. Just be aware that immigration at NRT can be really long. Coming in very early two weeks ago it was over an hour and a half - lines were really long. I thought I had downloaded everything but apparently missed the one for covid immunization so had to take a delay to have it checked by a person - which probably cost me an extra 30 minutes b/c that delayed me getting in the immigration line. There are also forms for immigration and customs that you can do online.