Once you hit 30 you open up that quest. It's pretty easy to accomplish, if you have about 100k and 4000 DP, and will award you with one piece of the Daevonion armor set. There are five pieces to this set and while they can't be traded they can be swapped between characters on the same account and server.
Basically this means that if you level five characters to 30 you can equip one of them with the full set.
Note that the base stats of the Flash Jerkin are a bit less than the Worthy piece. The Daevanion set is actually intended to be worn as a set. Each additional piece of the set adds bonuses beyond just the basic armor stats. Now, when you get all five pieces of the Flash (leather) set then the bonus becomes rather nice:
* +262 Maximum HP,
* +236 Maximum MP,
* +28 Evasion,
* +48 Physical Crit
* +12% Speed,
* +28 Flight Time,
* +125 Physical Def
Almost worth thinking about leveling those five characters.
