It appeared suddenly. 2:00 AM, in the peaceful modern era. A single room in Guest's residence.

With a sharp crack that tore through the air, glowing particles welled up from the void. They soon gathered in one place, beginning to take shape.

—And there, standing before you, was...

A human... no, a humanoid entity.

Clad in a white coat, she looked exactly like a beautiful human woman.

However, the wings on her back and the glowing halo above her head spoke volumes. They declared that this being was no mere human.

Along with her words, a faint electrical discharge crackled. Sparkling particles were released from her center, spreading throughout the surroundings.

Eventually, they dissolved into the atmosphere and vanished.