This Ilias is the real Ilias of the Paradox World
Ilias first appears in Luka 's dream in a reminiscence of the original adventure. However, her speech is garbled and unclear. The hero's surprised, as she was thought dead following the lack of appearance after The Great Disaster.
The next morning, the hero thinks it is a sign as it is the day of his baptism. He's all the more surprised when he see a small version of her fall in front of him during his climb on Iliasville Mountains. This version doesn't remember appearing in front of him, and flees in confusion after noticing she's been reduced in size.
She only appears once again in Ilias Temple Ruins, where she was trapped following the Great Disaster, and had since been holding the Paradox World together by staving off the world's chaosization, together with Eden's help from outside the temple. After smiting the White Rabbit on principle, she explains the truth of the situation to the hero and his party, and make the White Rabbit show exactly what caused the Great Disaster. Once done, she gets assassinated by the Lilith Sisters in an effort to slow the spread of chaosization, as she no longer has the power to hold it back effectively.
"Luka… a crisis is approaching the world, if you don't stop it, the world ■■be swallowed ■■■…"
"Go immediately ■■■■■■■ out ■■■ … The world ■■■■ forget ■■■■■■■ …"
- It is not clear if she's the same Ilias that gives Luka evaluation for most of the game. There are several hints, but it is not confirmed until near the end of part 2.