If your International Driving Permit (IDP)※ cannot be verified by the rental date, you will not be allowed to drive in Japan, and your reservation will be treated as a same-day cancellation.
※ An International Driving Permit issued in accordance with the 1949 Geneva Convention by a country that is a signatory to the convention.
Drivers with licenses issued in Switzerland, Germany, France, Taiwan, Belgium, Monaco, or Estonia must present both their original driver's license and a Japanese translation.
For more details, please refer to the following link.