|"Offer your soul..."|
|Affiliation||Knights of Decroya|
|Status||Deceased or Captured|
|Appearances||Deception IV: Blood Ties|
- “Irena joined the Knights of Decroya at the same time as her fiance Charles, only for him to be killed before they could get married. Irena's heart has been closed off to the world ever since.”
- —Blood Ties description
- “A guard assigned to the Alejand Republic's Timenoid Ruins excavation team, the Blue Bloods. Her epithet comes from her interest in the occult, but her "curiosity" is actually a desire to see something scary, and she has an intense fear of the Timenoid human hunter legends.”
- —Nightmare Princess description
- Chapter 3: A Leap into Darkness
- Map: Prosslyn Castle
- Wave 3
- Intruder number 2
- Q064: Blue Bloods 1
- Map: Trapt Academy
- Wave 1
- Intruder number 1
- Capture Points - 4000
- Intro: "Maybe killing you will cheer me up."
- Death: "Now I'll be able to meet Charles..."
- Intro: "What is this place? So many machines I've never seen before... I'll have to check them out--after I beat you!"
- Death: "What happens when you die? I'm starting to get curious about that, too..."
|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