u/1989mystery — reddlx

Hi everyone, my cousin booked me for Princess cruise 9-day japan and 1 stop at Busan Korea and
holder of VISA-required passport for Korea and Japan.
I was approved of Japan Visa but single entry only.

Questions:

Do I need to get Korean visa?
Will Princess cruise allow me to
board and then stay on board during the stop if I have no Korean visa?
If I get Korean visa, shoul I have multiple entry visa to Japan since I will leave Japn enter Korea for one day then go back to Japan again?

Please help.