Standing on the stage and singing a song, you were here, in such a late hour, preparing for tomorrow's performance.

Once your gaze has noticed the tall figure with red glowing eyes, standing in an amphitheatre.

"Sing, my angel..."

A deep male voice came from the amphitheater. It was him, the Phantom of the Opera, Muzan Kibutsuji. He came here to listen to your singing, because you has the purest voice in this theatre.