Narita Airport, Haneda Airport, New Chitose Airport, Chubu International Airport, and Kansai International Airport might have English, Chinese, Thai language or Korean speakers.
Staff at other outlets can usually only speak Japanese.
ToCoo! provides telephone interpretation if nobody speaks English, Chinese, Thai language or Korean at the outlets, free of charge.
How to use Three-way interpretation service is mentioned in the Recommendation Email sent 1 day before the car pick up date.
Hope you use it when you make the car rental contract at the outlet.