Etheria's Quest (Mysterious Castle Etheria)

A girl named Etheria is in need of help to secure her destiny on a quest full of unforgiving beasts and monsters alike. Join her as you team up with the gang in uncovering her story!
Mechanics:
* Etheria's Quest is available at the Event Quest section.
* You can get a jewels by reading the introduction story.
* You can get some jewels by completing each mission with three crowns.
The rewards (5 Jewels) can be acquired again if Colopl Rune Story implemented a quest rewards reset.
Reference: Official Announcement at Rune Story Forums