The former email address (xxxx@yu-wakasa.hope.cx) became unavailable as of February 28, 2026, due to the termination of the service. From March 1, 2026, emails sent to the old address may result in delivery errors.

While our representatives are providing specific details individually, as a general rule, you can reach us by replacing “@yu-wakasa.hope.cx” with “@wakasainc.co.jp”.

(Example) xxxx@yu-wakasa.hope.cx → xxxx@wakasainc.co.jp

We apologize for the inconvenience and kindly ask that you update your address book.