(Hollow) Test Site Ruins

[Test Site Ruins]
A dark, natural labyrinth, untouched by human presence for years. The fog and dim light make it impossible to tell whether it's day or night, obscuring the full view of this place. Ten years ago, there were plans to build three circular experiment grounds here, but during construction they encountered "unprecedented Miasma." The project was immediately abandoned, and the area was designated as a restricted zone that cannot be entered with the current level of Ether defense.