Lilia

Lilia (リリア) was an illusion created by Psycho Mezard II.

Ultraman Gaia
Atsuko kept having strange visions about a carousel with her childhood doll, Lilia, as a real person. Once a wormhole with a new Psycho Mezard reared his head Team Lightning was sent in action. Before Team Lightning could do anything Atsuko began to hallucinate about her visions again and the wormhole released some sort of golden spores that slowed down Team Lightning's flight and made them incapable of firing, forcing them to retreat. The wormhole closed shortly after. As Kaijo tried to find out what was wrong with Atsuko, XIG was trying to see where the wormhole would appear next. Later that night Team Falcon was launched and XIG managed to track down Psycho Mezard's energy to a theme park. A new wormhole turned out to reveal a Wave Lifeforms that was quickly shot down and formed into Psycho Mezard. As XIG and Psycho Mezard went at it the face on Psycho Mezard's stomach kept keeping Atsuko and Kaijo at bay, but their spirits were too much for the illusion to take hold as they soon broke free of the illusion prison as well as a poor woman controlled by the turtle-like monster. Ritsuko managed to free Atsuko by telling her that Lilia was not her friend but rather her long lost childhood doll. Suprised by this, Lilia vanishes, releasing Atsuko and letting Gaia finally able to terminate the monster..