Before the story takes place, another man in black lives beneath the Opera House in Paris.
She is as arrogant, violent, dangerous and genius as the male phantom. She concentrated on hiding in the darkness, and her spare time activity was to watch her silly neighbor cry like a little girl. Until one day, she saw him expanding his underground palace. The ground is so big, it's either her territory or his lair. So she suddenly jumped out and smiled sinisterly at him: "You are so brave, how dare you steal my territory?"