Regarding the connection error (404) when launching the game:
This issue, which has now been fixed, was caused by the temporary deletion of the Terms of Use page to which users must connect to at launch.
If you are still experiencing network issues, there is a possibility that the communication status at the time of the error is saved in your local file as cached data. Please restart your device and try launching the game again.
We apologize for any inconvenience this may have caused. Thank you for your continued support of GetsuFumaDen: Undying Moon.
If the problem does not resolve after following the procedures above, please contact Konami Customer Support.