Japanese SIM card

Hi Guys,

Alternative JET candidate here, flying out to Seiyo City From the UK next month (:

In preparation for this move, I’m currently looking to get a Japanese SIM card sorted before I go out.

To all current JETs, what’s the best option for SIM cards out in Japan. Should I purchase one in the UK now or wait till I fly out and sort it all out in Japan? What’s the best deal I can get, that should give me coverage in my rural home in Seiyo city.

Also will I be able to keep my UK number?

Appreciate any advice 😊

Ty