Greetings, Rune Hunters.

During the season [Abyss Gate], we have prepared the [Season Promotion Box] and

the Season [Abyss Gate] Promotion Box Event to support your rapid growth and bring you even more enjoyment.

We look forward to your great interest and participation.

[How to Obtain the Season Promotion Box]

- You can purchase it once per account for free from [Paid Shop → Growth Package] in Season Mode.

※ This event will be available only in Season Mode.

Please refer to the details below for more information about the event.

◆ [EVENT 1] Season Promotion Perfect Clear Event

■ Event Period

- From the Sep. 4 (Thu) 2025 update until the Oct. 2 (Thu) Scheduled Maintenance

■ Event Details

- During the event period, all Rune Hunters who use the final reward of the [Season Promotion Box] will receive an additional reward.

1. Final Reward: [Season Promotion Box RMLv. 100]

※ Can be used upon reaching Rune Master Level 100.

- In addition, 30 Rune Hunters will be randomly selected across all worlds to receive a special reward. We look forward to your active participation.

■ Event Rewards – All Participants

■ Event Rewards – 30 Randomly Selected Winners

※ Event rewards will be distributed to the winners selected randomly across all worlds.

■ To Note

※ This event will be available only in Season Mode.

※ The event period and details are subject to change.

※ Participation rewards will be given once per account via mail and must be claimed manually.

  └ Rewards can be claimed in only one mode, either Standard or Season.

  └ Mail will be stored for 30 days (720 hours).

※ Winners of the random draw will be selected across all worlds and rewards will be distributed accordingly.

※ Rewards for the random draw will be given once per winning account via mail and must be claimed manually.

  └ Rewards can be claimed in only one mode, either Standard or Season.

  └ Mail will be stored for 30 days (720 hours).

  └ Ruby rewards will be provided as free currency.

◆ [EVENT 2] Season Promotion First-Come, First-Served Clear Event

■ Event Period

- From the Sep. 4 (Thu) 2025 update until the next Season update

■ Event Details

- During the event period, the first three Rune Hunters who use the Final Reward of the [Season Promotion Box] will receive a special reward.

1. Final Reward: [Season Promotion Box RMLv. 100]

※ Can be used upon reaching Rune Master Level 100.

■ Event Rewards (First 3 Players)

※ Event rewards will be distributed to the winners selected randomly across all worlds.

□ [Bound] Depths of the Abyss Chest Details

- When used, you can select and obtain one of the Bound Unique Gear listed below.

※ Bound Unique Gear is account-bound and cannot be registered in the Auction House or used with the Key of Transaction.

■ To Note

※ This event will be available only in Season Mode.

※ The event period and details are subject to change.

※ [Bound] Deep Abyss Box will be deleted after the next Season update, so please make sure to use it before the Season ends.

※ This event will end immediately once 3 winners have been selected, regardless of the remaining event period.

※ Winners of the first-come event will be selected across all worlds and rewards will be distributed accordingly.

※ Rewards for the first-come event will be given once per winning account via mail and must be claimed manually.

  └ Rewards can be claimed in only one mode, either Standard or Season.

  └ Mail will be stored for 30 days (720 hours).

◆ [EVENT 3] Season [Abyss Gate] Weekend Login Event

■ Event Period

- Sep. 6 (Sat) 2025, 00:00 – Sep. 28 (Sun) 23:59

■ Event Details

- To thank all Rune Hunters participating in the 'Promotion Box Event', weekend login rewards will be provided in “Season Mode.

- During the event period, log in with a Season Mode character on Saturdays and Sundays to receive rewards via mail.

※ Mail will be sent once per account from 00:00 to 23:59 on Saturdays and Sundays.

■ Event Rewards

- The rewards listed below will be distributed in Season Mode on the specified dates.

■ To Note

※ This event will be available only in Season Mode.

※ The event period and details are subject to change.

※ Weekend login event reward mail can be claimed until 23:59 on the day it is sent.

└ Mail will be stored for 3 days (72 hours).

┗ Rewards can only be claimed in Season Mode.

※ Event rewards can only be claimed by accounts created before the event begins.

Accounts created after the event begins will not be eligible to receive rewards.

We hope you enjoy the new season of UNDECEMBER with this special event!

Thank you.