Zio is an Ilusionist who works for Evil at the gate of Mobius. She hands out quests for the Storyline called Chiral Valley which are:
Winged Spies (kill a certain amount of Chaos Sp-Eye)
Chaos Prisoner (Find 5 Mobius Survivors)
IMP-possible Task (kill a certain amount of Fire Imp)
You Can't Miss It! (find Escherion's tower)
Far Sighted (kill a certain amount of Cyclop Raider)
SlugFest (Kill a certain amount of Slugfit)