Greetings, Rune Hunters.

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

Please refer to the following information for details.

[Apr. 9 Scheduled Maintenance Completed]

1. Maintenance Schedule

: Apr. 9 (Thu) 08:00 ~ 12:00 11:30 (UTC+9)

2. Maintenance Details

1) Descent Raid Boss Monster Level Change

└ Hard Mode (155 → 165)

2) New Season Pre-celebration Event Attendance

3) Improvements and Other Changes

■ Issue Fixes

- An issue where the screen ratio of the [Arena] content was displayed abnormally in certain environments.

- An issue where some [Moonlit Weapon Costumes] and the [Moonlit Floating Dagger] Pet graphics were displayed abnormally in the mobile iOS environment.

3. Ending Event Notice

1) Undecember Rock-Paper-Scissors Event

※ Unused event items will be deleted after the maintenance on Apr 9, 2026 (Thu).

- Event items 3 types (Scissors, Rock, Paper)

- Cheshire Coin

2) Undecember Welcome Spring Event

※ [2026] Spring Blossom Coins and [2026] Spring Blossom Supply Packs not consumed by the maintenance on 04/09(Thu) will be deleted.

※ Unused Unique Chests will be deleted by the maintenance on 04/09(Thu).

1. [Bound] Spring Blossom New Unique Selection Chest
2. [Bound] Spring Blossom New Unique Random Chest
3. [Bound] Spring Blossom Unique Selection Chest (30 Days)
4. [Bound] Transcendent Unique Selection Chest
5. [Bound] Spring Blossom Unique Selection Chest (7 Days)

4. Extended 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 Apr. 9 (Thu) maintenance until Apr. 9 (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 Apr. 9 (Thu) to provide even more reliable game services.

Please see below for more details on the maintenance schedule.

[Apr. 9 Scheduled Maintenance]

1. Maintenance Schedule

: Apr. 9 (Thu) 08:00 ~ 12:00 (UTC+9)

2. Maintenance Details

1) Descent Raid Boss Monster Level Change

└ Hard Mode (155 → 165)

2) New Season Pre-celebration Event Attendance

3) Improvements and Other Changes

■ Issue Fixes

- An issue where the screen ratio of the [Arena] content was displayed abnormally in certain environments.

- An issue where some [Moonlit Weapon Costumes] and the [Moonlit Floating Dagger] Pet graphics were displayed abnormally in the mobile iOS environment.

3. Ending Event Notice

1) Undecember Rock-Paper-Scissors Event

※ Unused event items will be deleted after the maintenance on Apr 9, 2026 (Thu).

- Event items 3 types (Scissors, Rock, Paper)

- Cheshire Coin (Edited on Apr. 8 11:30 (UTC+9))

2) Undecember Welcome Spring Event (Added on Apr. 8 13:51 (UTC+9))

※ [2026] Spring Blossom Coins and [2026] Spring Blossom Supply Packs not consumed by the maintenance on 04/09(Thu) will be deleted.

※ Unused Unique Chests will be deleted by the maintenance on 04/09(Thu).

1. [Bound] Spring Blossom New Unique Selection Chest
2. [Bound] Spring Blossom New Unique Random Chest
3. [Bound] Spring Blossom Unique Selection Chest (30 Days)
4. [Bound] Transcendent Unique Selection Chest
5. [Bound] Spring Blossom Unique Selection Chest (7 Days)

4. 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 Abyss Gate, Auction House, Constellation of Time, Arena, Chaos 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.