Melpha serves as a priestess in Gainos, the Continent's capital, running a church where followers revere her as a holy woman or saint due to her kindness and unwavering devotion. Her religious sect adheres to fundamentalist doctrines based on ancient scriptures, led by her grandmother, Cardinal Dantan. Despite her virtuous nature, Melpha struggles to voice dissent and reluctantly participates in the Queen's Blade tournament as the sect's representative under pressure from her grandmother and believers. Physically, Melpha possesses blonde hair reaching her knees and blue eyes, standing approximately 166 cm (5'5") tall. Her standard attire consists of a blue cap featuring a white metal front piece engraved with her religious symbol, a long blue dress worn over a white bodysuit, a purple cloth wrap on her left side, a beige corset, and brown calf-high heeled boots. In her "Unlimited" incarnation, her outfit changes to a blue open-sided dress with a white under-suit, white gloves, a blue hat bearing the church's symbol, a white garter belt with stockings, and brown knee-high boots. Her height slightly increases to 167 cm in this version, accompanied by adjustments to her bust, waist, and hip measurements. Melpha's personality is characterized by shyness, humility, and deep piety. She is impressionable and naive, exemplified by her unwavering belief in Nanael as a divine angelic messenger. Performing "Holy Poses" causes her significant embarrassment due to their inherently lewd and anachronistic nature, which she views as a trial of humility. She remains committed to her religious duties and helping others, though her generosity often leaves her vulnerable to exploitation. Her background reveals she spent most of her life within the church before her first solitary journey to participate in Queen's Blade. During her travels, she frequently encounters individuals like a freezing man, hungry children, and a sick elderly man, giving away her possessions or performing Holy Poses to assist them, enduring public humiliation and highlighting her selflessness alongside her lack of worldly experience. Melpha shares a significant relationship with Nanael, whom she deeply reveres as "Tenshi-sama" (Angel). She demonstrates care through actions like cooking, massaging, and bathing with Nanael. When Nanael becomes a Fallen Angel, Melpha remains loyal, defending her in the Witch Swamp and restoring her to a Pure Angel with a kiss, underscoring Melpha's capacity for unconditional faith and compassion beyond doctrinal adherence. In combat, Melpha possesses minimal physical fighting ability, relying instead on white magic for healing and divine offensive power channeled through Holy Poses. These poses, detailed in ancient scriptures, manifest "Divine Power" for miracles or divine punishment, proving exceptionally potent against undead entities—eliminating all undead in Gainos in a single burst of holy energy. While her sect secretly trains priests to invoke this power without poses, Melpha is compelled to use them publicly during the tournament. Her parameters rate low in attack, agility, and technique but higher in defense. She carries a spiked mace and a small buckler, though she rarely uses them. Across official media, including the "Unlimited" continuity, Melpha retains her core traits while receiving updated visual designs. Her role expands in "Rebellion," where she supports the rebellion against Queen Claudette's tyranny. Her actions consistently emphasize protection and faith, such as defending Gainos from evil creatures and aiding allies like Nanael.