TV-Series
Description
Aldra, a half-demon born to the Pope and the Devil King's granddaughter, faced persecution alongside her sister during her early life. Their separation, occurring while Aldra searched for food, became her defining motivation. This drove her to summon the demon Delmore and forge a pact: immense power, including a petrifying gaze and flesh-rending secret blades, in exchange for eternal binding to Delmore and the halting of her physical growth. Empowered, she won two consecutive Queen's Blade tournaments, becoming the reigning Queen at approximately twelve years old—the youngest in the Continent's history.

Ruling from Gainos, Queen Aldra strengthened military control and deployed assassination units to crush opposition. Her reign, effective and initially popular, grew increasingly paranoid. She relentlessly searched for her missing sister; court sorcerers, fearing her reaction, concealed predictions of the sister's death by presenting blank paper as letters from her. Aldra appeared cold, emotionless, and ruthlessly focused on defeating challengers—traits later revealed as Delmore's influence, not her true self. Her appearance featured silver hair, a red outfit with a distinctive barbed codpiece, a metal eyepatch covering her petrifying right eye, and spiked armor. She collected petrified opponents as trophies in the arena and summoned bat-like "Minions" for combat support.

Defeat in a subsequent Queen's Blade tournament tore Delmore from her body. This stripped most of her powers and triggered a physical reversion to her true biological age, manifesting as increased height (from approximately 145 cm to 163 cm) and altered body proportions. Suffering memory loss during a journey to find her sister, she was rescued and married by an unnamed man. This marriage healed her psychologically, resulting in a cheerful, optimistic personality dedicated entirely to her husband. She worked as a gondolier, adopting new attire: a white apron with a red ribbon (a "naked apron" stereotype), light purple lace panties, white thigh-high boots, and a cat-ear headband.

When war erupted between the Queen's Army and the Rebel Army, Aldra joined to protect her husband. Without Delmore, she contracted new Netherworld dwellers: Belphe and Dogor (an amalgamation referencing the demon Belphegor). Belphe carried objects or breathed fire, while Dogor produced corrosive acid. Both demons, however, secretly plotted to devour her. Her weapon shifted from a broadsword to a gondolier's paddle, symbolizing her new life.

Her story arc in *Rebellion* and expanded media reveals her long-lost sister is Annelotte Kreutz, leader of the Rebel Army and a fellow half-demon. Their eventual reunion resolves Aldra's lifelong quest. In the *Unlimited* continuity, Aldra undergoes further transformation: her eye color changes to green, she gains wings and a tail, and her attire becomes a regal red dress with armored elements, devoid of the codpiece. Delmore reappears in a female form, and her weapon evolves into a curved, saw-bladed sword with an eye-gemmed crossguard.

Throughout her journey, core traits persist: a protective instinct toward loved ones (first her sister, later her husband) and reliance on demonic pacts for power, each carrying significant physical or psychological costs.