◆ Boost! Login Reward Event

- Event Period: Oct 22, 2026 (Thu) ~ Oct 25, 2026 (Sun)

- Event summary: Boost rewards will be sent via mailbox to Rune Hunters who log in to Undecember during specific times each day.

- Event details: Please refer to the image and notes below.

📢 Event Notice

※ Event period and rewards are subject to change.

※ All rewards can be obtained by participating in all 1st to 4th event periods.

※ Boost! Connection rewards will expire and be deleted if not claimed within 72 hours from the time of sending.

※ Weekend login rewards must be claimed directly from the mailbox and must be claimed in the desired mode. (Select either Season or Standard)

※ Rewards received from the mailbox will be delivered to the inventory.

📢 Reward Related Notices

※ '[Exclusive] Casthor Essence' is an enchant item that greatly affects gear options.

Please carefully check the precautions indicated during enchant when using on equipped or owned gear items.

※ ‘Grave Robber King's Essence’ can be used to gain a buff that increases Gold acquisition by 100% for a certain period or sold at the Shop to immediately obtain 1,000,000 Gold.