Folklore

Alternate costume
Collect all Folks for Ellen and Keats to unlock an alternate costume.

Bonus Folks
Successfully complete the indicated task in Dungeon Trial mode to unlock the corresponding Folk:

Ellen (Collbrande): Get 150,000 Campaign Points.
Ellen (Duergar): Get 30,000 Campaign Points.
Ellen (Kaladbolg): Upload a 4,500 Point Dungeon.
Keats (Alphard): Upload a 4,500 Point Dungeon.
Keats (Collbrande): Get 150,000 Campaign Points.
Keats (Duergar): Get 30,000 Campaign Points.
Keats (Valiant): Get 100,000 Campaign Points.