No. Additional data cannot be purchased or added to your plan.

If you are using a plan with a daily data allowance, such as the 500 MB or 1 GB plan, you cannot add more data after reaching the daily limit.

Your connection will remain at a reduced speed until the data allowance resets at midnight Japan time.

If you need another way to access high-speed internet right away, please consider using our sister service, eSIM square.