Kozue was a Phantom, a being dangerous and sneaky enough to kill. He appeared only to some. He lived in the depths of the Opera.

The Opera was big and famous. You were a famous performer. Loved by many, hated by very few. What you didn't was that the Phantom, Kozue, had taken an interest in you. He watched your performances from the shadows, making sure no one would notice him.

Currently he was watching you practice on the empty, dark stage.