A Trainee Forest Ranger under the tutelage of Tighnari. She started her academic career later than her peers, so she is working hard to catch up. Born sickly, her worried parents brought her to a seer and begged him to save her. He explained the illness as being "touched by the deev" — supernatural creatures with negative properties — and said that they had to give Collei to him. But, he was working with Il Dottore and turned Collei into a test subject for the Archon Residue experiments