Secret Old Moon Letter IV

- Description: A letter with the seal of the Old Moon Guild. It is short and written in a cutesy handwriting. "I assure you that this will be a worthwhile task. Please help us with our new research. Yours truly, Yan" ※ Right-click to activate navigation to the event quest NPC. Cannot be used after February 12 (after maintenance). Check out the event page for details. ※ Open the Quests window (O), go to the bottom of the window, and select "Other" under Quest Type to be able to accept the quest.