※When using email addresses in the following domains
It is recommended to add our domains (@bitterz.com) to your whitelist before registration.
@icloud.com
@me.com
@live.jp
@msn.com
@hotmail.com
@outlook.com
※If you use mobile phone carrier email addresses
It is difficult to receive emails related to account registration.
Please keep this in mind if you wish to proceed.
If you have a different email address, we ask that you use that for registration.