|"Offer your soul..."|
|Affiliation||Private Mercenary Unit|
|Appearances||Deception IV: Blood Ties|
- “Though Mary applies herself to her duties with supreme diligence, she would appear to be almost completely emotionless. No one has ever seen her smiling, or expressing anger in any way.”
- —Blood Ties description
- “A member of the Order of Megiddo's secret Torture Research Team. The theme of her research is to inflict gradual pain on a subject to find out exactly what parts of a human body are necessary for life. Her skill with a blade is on par with any master chef, and in battle she will remove any unnecessary parts from her opponent.”
- —Nightmare Princess description
- Chapter 6: An Unfortunate Encounter
- Map: Lapria Park
- Wave 3
- Intruder number 2
- Q051: Torture Research Team 1
- Map: Prosslyn Castle
- Wave 1
- Intruder number 3 and final
- Capture Points -
Weakness: Wall, Floor
- Intro: "Just another mission."
- Death: "My mission... I failed..."
- Intro: "How much can you lose before you die, I wonder? I'll pare down what you don't need."
- Death: "Aah, but if I die like this... I'll never know. I...don't need this..."
|Deception IV: Blood Ties • Deception IV: The Nightmare Princess|
Caelea • Veruza • Lilia
Velguirie (Fuyuno Kanata)
Millennia • Reina • Allura
|Alma Mueller • Celia Mevious • Devil • Dow Menigell • Ernest Love • Evelyn • Freise Grayden • Gallagh Belgosh • Lord of Prosslyn Castle • Lyla Gun Feyconia • Telma Mueller • Vale Brandeau • Victor Logos • Zeno Shin|
|Armor Break • Daemons • Deception Studio • Holy Verses • Twelve Saints|
Prosslyn Castle • Balmagyr • Lapria Park • Ruins of Scardzyini
Trapt Academy • Kagero Hospital • D. Seption Park