We have confirmed that the ´[Event] Ancient Essence Reward´ obtained through the Triangular Battle in the 2024 Kalonline Summer Event is deleted when you log out of the game without using it.
We will pay out the deleted Event rewards in bulk during the regular maintenance on July 25th, 2024.
We apologize for any inconvenience caused by this issue, and please use the ´[Event] Ancient Essence Reward´ immediately after receiving it.