Castrate

In the everyday routine of her immortal life and during periods of peace with Zeldris in the restored Demon Realm, Gelda possesses a number of refined and extremely peaceful habits. She detests the bright sunlight of Britannia with all her might, arguing that it causes her irritating biological fatigue, and therefore prefers to carry out all her recreational activities under the moonlight or in underground libraries. It is officially documented that she is an avid reader of mystery novels, ancient human romantic poetry, and grimoires of mystical geography, and she has a habit of discussing her readings with Zeldris, who listens with absolute devotion while she rests in his lap.

Gelda's greatest moment of heroism and determination occurred during the climax of the modern Holy War, when the Demon King took physical control of Zeldris's body, imprisoning him within his own mind. Defying the apocalyptic danger of the battlefield, Gelda infiltrated Zeldris's subconscious. In the chaotic mental world created by the demon god, Gelda located a weakened and desperate Zeldris. With her mere presence, her words of unconditional love, and a warm embrace, Gelda shattered the Demon King's illusions, granting Zeldris the spiritual strength to rebel from within and reclaim his physical freedom.

During the Edinburgh incident in the modern era, the seal confining the vampires was broken, and Gelda awoke hungry and melancholic, forced to fight Meliodas. However, upon recognizing Meliodas's striking physical resemblance to her beloved Zeldris, Gelda stopped the fight. Meliodas, understanding the immense love his younger brother felt for her and wishing to atone for his own family's mistakes, solemnly promised Gelda that he would find a way to reunite her with Zeldris. To keep her safe from the Holy Knights and the forces of Heaven until the opportune moment, Gelda willingly allowed Meliodas to temporarily seal her again in a secure location.

An official and deeply moving detail from Gelda's backstory is the reason she survived the purge of her clan three thousand years ago. When the Vampire Clan attempted to rebel against the Demon King, he ordered his executioner, Zeldris, to kill and eradicate all vampires. However, Zeldris, unable to kill the woman he loved, made the radical decision to defy his father's orders: he secretly sealed Gelda and her entire clan in a mystical coffin underground, preferring to keep her confined but with eternal life rather than see her die—a pact of mercy that became the demon prince's best-kept secret.

Gelda's mental structure possesses truly extraordinary density and resilience. Having overcome the trauma of confinement and the pain of separation, her mind is virtually immune to brainwashing spells, psychological illusions, or mental torture inflicted by other mages. Her most advanced mystical trait is a colossal empathic connection she shares with Zeldris; this connection allows her to locate his magical energy signature across continental distances and even spiritually infiltrate his subconscious to awaken him from induced trances, acting as a beacon of psychological light that no magical darkness can extinguish.

In direct offensive combat, Gelda possesses outstanding mastery of pyrokinesis and shadow magic. She can summon and project bursts of dark or purple fire that not only burn the opponent's physical body but also consume their residual magical energy. Gelda can mold these flames to create defensive barriers or high-density projectiles that explode upon the slightest physical contact. She is also able to mystically merge with the surrounding shadows, allowing her to perform short-range teleportations and surprise attacks that are extremely difficult for warriors relying solely on physical strength to anticipate.

Gelda's true strategic potential lies in her innate mystical ability known as the magic of a Thousand Temptations. This ability allows her to manipulate the electromagnetic fluctuations of others' brains, inducing states of trance, hypnosis, or extreme romantic suggestion in her targets with a mere glance from her crimson eyes. Gelda can break the willpower of common enemy warriors, forcing them into a state of pleasurable lethargy or to attack each other under the influence of her optical illusions, making her an extremely dangerous combatant who can neutralize entire battles without spilling a single drop of blood.

As a high-ranking member of her clan, Gelda possesses all the biological faculties of vampires, amplified to a new degree. She has superhuman physical strength, movement speed beyond human perception, and exceptional evasive agility in the dark. Her most lethal ability is instantaneous cellular regeneration: she can heal severe lacerations, burns, or dismemberment in fractions of a second by absorbing blood or channeling her own stamina. She also possesses biological longevity that allows her to remain perpetually young, immune to deadly diseases and the natural effects of aging.

Gelda's attire subtly and formally highlights her high-born status within the Vampire Clan. She wears an elegant, one-piece gown that combines dark purple or black with pristine white details. The design features a high, stiff, Victorian-style collar that frames her face, long sleeves that cover her arms, and a fitted corset that accentuates her slender figure. The skirt flows freely and fully, reaching her feet, maintaining a modest, polished, and aristocratic appearance reminiscent of medieval castles, seemingly withstanding the passage of time thanks to its protective life force.

Physically, Gelda possesses a slender, tall, and highly stylized feminine silhouette, whose anatomical proportions exude a majestic and aristocratic grace. Her body language is devoid of military tension or rigidity; she moves with slow, smooth, and sinuous movements that give the impression that she floats through the dark landscapes. She rarely gestures in an exaggerated manner, preferring to keep her hands folded or adopt relaxed postures that denote absolute self-confidence. The most distinctive biological feature of her anatomy is her retractable fangs and slightly sharpened nails, which extend when she channels her suction power or her dark fire magic.

Gelda's face is a perfect sculpture of classical beauty, aristocratic refinement, and mystical coolness. She possesses small, delicate, and exquisitely symmetrical features that convey a perpetual expression of tranquility or subtle boredom. Her skin is extremely pale, almost translucent, accentuating her nature as a creature of the night. Her eyes are large, almond-shaped, and a deep violet that shifts to a brilliant crimson when her vampiric instincts or magic are activated. Her hair is a beautiful shade of golden blonde or very light ash blonde; she wears it in a short, straight bob that perfectly frames her face symmetrically above her shoulders, with straight bangs across her forehead.

Behind her facade of utter indifference to life and her apparent vampiric coldness, the driving force of Gelda's psyche is her unconditional, eternal, and devoted love for Zeldris. For Gelda, Zeldris is not the fearsome "Representative of the Demon King," but a wounded soul burdened by a colossal weight. Her emotional connection to him is so profound that she can endure centuries of sealing, physical pain, and isolation without her affection waning. Gelda possesses a quiet empathy and unwavering loyalty that compel her to risk her own spiritual existence to save Zeldris from the darkness of his own clan or from his father's possession, demonstrating an indomitable mental fortitude.

Gelda's psychological makeup is governed by an unflappable calm, a somber maturity, and a profound detachment from the worldly conflicts of Britannia. Having lived for millennia and witnessed the decline of her own clan, Gelda perceives the world with a mixture of irony, weariness, and cool rationality. She is not driven by outbursts of anger, panic, or ambition for power; her temperament is perpetually serene, reserved, and melancholic. Gelda detests the unnecessary cruelty and savagery of her people, preferring solitude or silence to engaging in territorial disputes, which makes her a profoundly mature and enigmatic figure within the Gothic court.