If you need something that you missed in advance
such as guidebooks, maps, conversation books, and
souvenirs prepare them before boarding.
Communication: Shops for SIM cards, Wi-Fi routers,
and mobile phones that can be used in Japan are
usually located in the airport lobby.
Be prepared to have no inconvenience while traveling
in Japan. Cash: It is safer to prepare cash
(transportation, meals) that you will need
immediately after entering Japan. Compared to other
countries, cash payments are more common in Japan
than credit cards and e-money payments. It is a good
idea to check the rates and fees before using the
exchange. Travel insurance: You can apply for
overseas travel insurance at the airport although it
may be included within the service of your credit
card. Be prepared in case of an emergency.