Empty Notorious Monster quests (ENM quests) are events that pit your skills against ferocious opponents in various battlefields. These battlefields can only be entered with a key item obtained by completing a quest given by a certain NPC.

ENM battlefields differ from regular battlefields in the following way :

-An orb is not required to enter an ENM quest battlefield.
-No experience will be lost when KO'd within these battlefields.
-Characters succeeding in an ENM battle will be rewarded with large amounts of experience, as well as unique items.