Christine is the main character of The Phantom of the Opera, a young singer who is taught by The Phantom.
Shinjuku: Malignant Quarantined Demonic RealmEdit
Christine accompanies The Phantom of the Opera in the "Shinjuku" Singularity. She herself is a Phantom that has been sealed in a doll. She commands the puppet troops, Coloraturas, that occupy the territory of The Phantom.
The Phantom and Christine attack Ritsuka Fujimaru shortly after he arrived, but they are stopped by Moriarty, who helps Ritsuka escape. Ritsuka's party later attack the territory of The Phantom, during which Christine is defeated and destroyed.
Christine's singing controls the Coloratus in Kabukicho.