au (KDDI) gives you free access to more than 100,000 Wi-Fi hotspots nationwide.
How to use Secure Wi-Fi Hotspot with Prepaid SIM/eSIM.

Procedures

• southSTEP1: OpenRoaming
• southSTEP2: au Wi-Fi SPOT
• southSpecial: YAMAGOYA Wi-Fi | FERRY Wi-Fi

Secure your internet connection
with encrypted Wi-Fi

The EAP system ensures a high level of security, making it possible to use the system safely.

• 01

  Secure communication method eliminates anxiety about public Wi-Fi spots

  More secure with encrypted Wi-Fi for increased security! And you can rest assured that you won't be connected to any fake access points!

• 02

  No dedicated application required! Just set it up the first time

  Can be set up and used immediately using the standard Wi-Fi function of a smartphone or computer and is ready to use.

• 03

  Automatically connected

  Simply approach the Wi-Fi spot—no login or re-registration is required. You will be connected automatically.