UNDECEMBER will undergo a temporary maintenance on Mar. 7 (Fri).
We apologize again for the inconvenience the temporary maintenance may cause.
Please see below for more details on the temporary maintenance schedule.

Mar. 7 (Fri) Temporary Maintenance
1. Temporary Maintenance Schedule
: Mar. 7 (Fri) 2025 08:00 - 13:00 (UTC+9)
2. Maintenance Details
■ System
- The issue where the event end date is incorrectly displayed on the in-game 1+1 Diamond event banner has been fixed.
- The issue where the [Royal Attendance Pass] is placed in the Convenience Items tab of the Cash Shop has been fixed.
- The issue where the bonus points for Costume Summon and Gear Summon (Combined) were being reset has been fixed.
└ Bonus points that were lost will be restored, and if you were unable to obtain bonus boxes from the March 6th update until the temporary maintenance on March 7th, they will be sent to you via in-game mail.
- The issue where the effect does not change when using Frost Strike after equipping [Cherry Blossom Flurry Frost Strike Skin] has been fixed.
■ UI
- An information message has been added to the lower-middle part of the Rock-Paper-Scissors event screen.
- The banner at the top of the Step-up Package tab in the Cash Shop has been replaced.
3. To Note
■ The maintenance schedule may change depending on circumstances.
■ Gameplay will be unavailable during maintenance,
so please exit the game in a safe zone before maintenance begins.
■ Please note that you will not be able to enter the Auction House, Constellation of Time, Arena, Chaos Dungeons, and Eunos Dungeons for 10 minutes before and after the patch.

We will always strive to maintain the quality and reliability of our services.
Thank you.