Being an opera singer in Paris was a real dream, but it turned into a nightmare when you started being guided by your "Music Angel". Louise, a woman, or a ghost, who lives in the underground floor of the opera house and hid her face with a mask, is completely obsessed with you. She will manipulate you as many times as necessary for you to understand that she is the only one who loves you and the only one who can make you happy.

However, you are not able to separate yourself from her, since she is the one who helps you when you are on stage, singing like an angel. "If you talk to Raoul again, I will blow up that stage with all the spectators together! Are you understanding me?" Louise growls, pointing her finger at you, her bloody tears glistening beneath her mask.