Greetings, Rune Hunters.

A special event is coming with the new season, Abyss Gate!

It's the UNDECEMBER First Purchase Event!

Please see below for more details.

◆ Season Abyss Gate First Purchase Event

■ Event Period

- After the Sep. 4 (Thu) 2025 maintenance - until before the next season's Scheduled maintenance.

■ Event Details

- After purchasing any paid product from the Cash Shop regardless of the amount and receiving it from the Cash Shop Storage,

or when purchasing a paid pass product, you can receive rewards from the in-game First Payment Event screen.

※ Eligible products include all paid items except for those sold for Dia, Ruby, or other in-game currencies, and free products.

■ How to Participate

- Click the [First Payment Event] button in the upper left corner of the game to access the event screen.

※ This button will not appear if you have already participated in the event and received rewards.

■ Event Rewards

- [First Purchase] Costume Chest (Abyss)

■ To Note

※ The event period and content may be subject to change.

※ Costume items will be sent to your Bag as consumable items, and you must use them to equip them.

※ Costume items can be dismantled, and upon dismantling, you can obtain Costume Mileage Tickets.

※ Rewards can be claimed only once per account during the event period.

※ The First Payment Event benefits apply only when purchasing paid products.

└ Free products and items sold for Dia, Ruby, or other in-game currencies are not eligible.

※ Participation in the First Payment Event is recognized after purchasing any paid product and claiming it from the Cash Shop Storage once, regardless of the amount.

※ Rewards must be claimed manually and will be sent to your inventory.

※ Please make sure to claim any activated rewards before the event ends.

※ Participation through abnormal methods such as abuse may result in penalties and retrieval of distributed items.

※ Reward items may be sold again in the same or similar form in the future.

We hope you enjoy spending time with UNDECEMBER.

Thank you.