I am not familiar with the trains in Japan.  I just ran across this piece of information for those who are planning on taking luggage on a train:   https://tokyocheapo.com/travel/transport/new-shinkansen-luggage-rules/ https://www.japan-guide.com/e/e2274.html   Disclaimer:  This may have nothing to do with how you get from point A to point B.  Just a note for information...in case.  "Some" lines require advance reservations if you are taking "over-sized" luggage that doe