Illusion Town is an extraordinarily unique exploration area on the outskirts of Hethereau, with the entire town enveloped in persistent anomalous phenomena. Visitors entering Illusion Town frequently experience various visual distortions — building outlines shift continuously in their field of vision, the sky's color fluctuates between light and dark, and the sense of spatial distance becomes unreliable. These phenomena are not mere hallucinations but substantive disruptions of reality caused by anomalous forces.
Illusion Town was originally an ordinary small town, but following a major anomalous incident, the physical laws governing the entire area underwent a permanent, subtle alteration. After residents were gradually evacuated, the site became a subject of study for Espers and researchers. The Bureau of Anomaly Control has established a perimeter around Illusion Town, restricting civilian access, though the reach of the anomalous influence appears to be slowly expanding.
For the Appraiser, Illusion Town is both a hazardous proving ground and an invaluable window into understanding the nature of anomalies. The anomalous samples and observational data gathered here are irreplaceable for studying the causes and patterns of anomalous activity. When exploring Illusion Town, players must remain constantly vigilant, as navigating direction and identifying threats become extraordinarily difficult in an environment of visual distortion.