Business hours: 9:00-18:00 Japan time (except Saturdays, Sundays, holidays and our company holidays)

*We usually respond within 3 business days, please note that depending on the content of the inquiry and the time the inquiry was received, there may be a delay in receiving a response.
*If you do not receive a response after 3 business days, there may be an error in the email address you input, or the email from GCH may have been placed in your spam folder. Please check and try again.
*Depending on the content of your inquiry, we may not be able to respond to you. We thank you in advance for your understanding.