Le fantôme de l'opéra (The Phantom of the Opera) influenced Of Metal and Wishes

Sarah Fine has described Of Metal and Wishes as a reimagining of the classic story.

• Slaughterhouse/factory → Opera house: Fine transforms the original theatrical setting into an industrial slaughterhouse.
• Ghost/Phantom → Ghost: A mysterious figure inhabits the hidden spaces beneath the factory and secretly watches over Wen.
• Christine → Wen: The young heroine becomes connected to the mysterious hidden figure.
• Phantom → Ghost figure: The isolated, disfigured/hidden male figure and his fixation on the heroine are adapted from the Phantom concept.
• Romantic triangle: Wen's relationship with Melik adds a second romantic relationship that changes the original dynamic.