Starting from September of 2023 all users are required to register their phone number for verification purposes. We thank you for your understanding.
Please try the steps below if you fail to receive OTPs:
Please make sure to enter your mobile phone's country code and phone number. The default setting is the Japanese area code(+81)
If you are using an app, please try logging in via browser to finish the phone number confirmation. https://cloak.ecbo.io/users/sign_in
Please contact us if the above steps still fail to send OTPs.