Moving In — Hello World Japan — Hello World Japan

Japan Health Insurance: NHI, Shakai Hoken, and the Arrival Gap

Everyone with a Japan residence card must enroll in health insurance. Who gets NHI vs company coverage, what year-1 premiums cost, and arrival gaps.

Best Japan SIM for International Roaming in 2026

Compare ahamo, Rakuten Mobile, povo, and LINEMO for overseas travel: roaming data, 15-day throttling, fees, and which Japan SIM to use abroad.

How to Open Your First Bank Account in Japan as a Foreigner

A practical guide to first bank accounts in Japan for students, Working Holiday holders, work visa holders, and Business Manager visa holders.

How to Get a Japanese Phone Number Without a Residence Card

Without a Residence Card, getting data in Japan is easy. Getting a real Japanese phone number is harder. This guide shows what still works.

How to Get a Japanese SIM, eSIM, or Phone Number in Japan

Which Japan SIM or eSIM gives you a real 080/090 number? SimFinder by visa type — from tourist data-only eSIMs to ahamo for residents.