Lorelei

Lorelei "Mirror Eye", a former "Eye" of the Organization who can sense details in an aura from a mile away and the artistic sense to draw it in great detail as well. She was "recruited" by the Vanguards and trained by Nina. (c61)

She was assigned to Baron Van Donnegon by the Vanguards to reveal conspiracies against him. Van Donnegon treated her like a tool, she was imprisoned in a dirty cell in the dungeons, overworked, malnourished and mentally abused when Nina met her. Lorelei needed direct help from Messire to recover, something that prompted Nina's request to terminate van Donnegon's bloodline, which was granted. (c62, c64)

After she recovered, Lorelei started her task by Nina to search for the fourth Eternal One, somewhere around a decade old (Eliah). (c65) After she had finished her task, she left Pieta carried by Bones towards the Vanguards headquarters. (c66)