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Notice

[Completed] Dec.11 Scheduled Maintenance

UNDECEMBER
2025.12.09 Tuesday 18:30 (UTC + 9)

Greetings, Rune Hunters.


Maintenance has been completed and UNDECEMBER is now available to play.


Please refer to the following information for details.


[Dec. 11 Scheduled Maintenance Completed]


1. Maintenance Schedule

: Dec.11 (Thu) 07:00 ~ 13:33 (UTC+9)


2. Maintenance Details

1) Addition of the 4th Anniversary Pre-Event

2) Changed boss monster levels in Descend Raid

└ Hard Mode (165 → 170)

3) Improvements and Other Changes

Issue Fixes

- Fixed an issue where certain effects such as “Skill Rune Duration +%” were not applied to the Attack Enhance / Defense Enhance Skill Rune.

Fixed an issue where certain options for the Unique-grade Gear [Acuben's Crystal] were not applied.

Fixed an issue where the “Monster Curse Aura Removal Effect” of the Unique-grade Gear [Veil of Immortality] only activated once.

Fixed an issue where some Unique items could not be registered in the Collection and where Ruinstone effects were not applied:

  1. Ultimate Aquilla's Flutters
  2. Ultimate Alissa's Aurora
  3. Ultimate Veil of Immortality
  4. Ultimate Spica's Wisdom
  5. Ultimate Leo's Footsteps
  6. Ultimate Acuben's Punishment
  7. Ultimate Miraseti's Wrath
  8. Bound Ultimate Aquilla's Flutters
  9. Bound Ultimate Alissa's Aurora
  10. Bound Ultimate Veil of Immortality
  11. Bound Ultimate Spica's Wisdom
  12. Bound Ultimate Leo's Footsteps
  13. Bound Ultimate Acuben's Punishment
  14. Bound Ultimate Miraseti's Wrath


Improvements

- The following tooltip will be added to the [Strike] Link Rune

  1. Cannot be linked with Iai-jutsu.

- The tooltip for the [Iai-jutsu] Link Rune will be updated as follows

  1. Cannot be linked with Strike.

- When reconnecting to the game, all Elixir effects applied to the character will now be removed.


3. Notice Regarding Issues Occurring After the Maintenance

- An issue where Energy Duration is affected by the [Skill Rune Duration +%] effect instead of the [Energy Duration +%] effect.

└ We apologize for the inconvenience this has caused, and we will do our best to fix the issue as soon as possible.


4. Maintenance Compensation

: Gemstone of Courage x 3,000

: Gold x 300,000

: Croco's Precious Fragment x 3

* You can claim the compensation from your mailbox after the Dec. 11 (Thu) maintenance until Dec. 11 (Thu) 23:59 (UTC+9).

* Maintenance compensation will only be sent once per account for both modes, and the mail will be stored for 3 days (72 hours).

┗ You can only claim the compensation from either Standard or Season Mode.

* Maintenance compensation can only be claimed by accounts created before the maintenance.

Compensation cannot be claimed by accounts that were created after the maintenance.

* The Zodiac Walker effect's duration is not affected during maintenance.


5. Extended Maintenance Compensation

: Gemstone of Courage x 4,000

: Gold x 400,000

: Croco's Precious Fragment x 6

* You can claim the compensation from your mailbox after the Dec. 11 (Thu) maintenance until Dec. 11 (Thu) 23:59 (UTC+9).

* Maintenance compensation will only be sent once per account for both modes, and the mail will be stored for 3 days (72 hours).

┗ You can only claim the compensation from either Standard or Season Mode.

* Maintenance compensation can only be claimed by accounts created before the maintenance.


Thank you for waiting for the maintenance to be completed.


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


Thank you.




======




Greetings, Rune Hunters.


We would like to inform you that UNDECEMBER will undergo scheduled maintenance on Dec.11 (Thu) to provide even more reliable game services.


Please see below for more details on the maintenance schedule.


[Dec.11 Scheduled Maintenance]


1. Maintenance Schedule

: Dec.11 (Thu) 08:00~12:00 07:00 ~ 13:00 14:00 (UTC+9)


2. Maintenance Details

1) Addition of the 4th Anniversary Pre-Event

2) Changed boss monster levels in Descend Raid

└ Hard Mode (165 → 170)

3) Improvements and Other Changes

Issue Fixes

- Fixed an issue where certain effects such as “Skill Rune Duration +%” were not applied to the Attack Enhance / Defense Enhance Skill Rune.

- Fixed an issue where certain options for the Unique-grade Gear [Acuben's Crystal] were not applied.

- Fixed an issue where the “Monster Curse Aura Removal Effect” of the Unique-grade Gear [Veil of Immortality] only activated once.

- Fixed an issue where some Unique items could not be registered in the Collection and where Ruinstone effects were not applied:

  1. Ultimate Aquilla's Flutters
  2. Ultimate Alissa's Aurora
  3. Ultimate Veil of Immortality
  4. Ultimate Spica's Wisdom
  5. Ultimate Leo's Footsteps
  6. Ultimate Acuben's Punishment
  7. Ultimate Miraseti's Wrath
  8. Bound Ultimate Aquilla's Flutters
  9. Bound Ultimate Alissa's Aurora
  10. Bound Ultimate Veil of Immortality
  11. Bound Ultimate Spica's Wisdom
  12. Bound Ultimate Leo's Footsteps
  13. Bound Ultimate Acuben's Punishment
  14. Bound Ultimate Miraseti's Wrath


■ Improvements

- The following tooltip will be added to the [Strike] Link Rune

  1. Cannot be linked with Iai-jutsu.

- The tooltip for the [Iai-jutsu] Link Rune will be updated as follows

  1. Cannot be linked with Strike.

- When reconnecting to the game, all Elixir effects applied to the character will now be removed. (Added on Dec. 10 13:40 (UTC+9))


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 HouseConstellation of TimeArenaChaos Dungeons, and Eunos Dungeons for 10 minutes before and after the patch.


We hope the information above will help you avoid any inconvenience as you play the game.


Thank you.


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