OVA
Description
Roswaal L. Mathers, Margrave of Lugunica’s western territories and Head Court Mage, leads the Mathers family while harboring the soul of his ancestor, Roswaal A. Mathers—originally Altair Mathers—a figure driven by a four-century quest to resurrect his mentor, the Witch of Greed Echidna. Born into nobility, Altair endured agonizing magical energy overload until Echidna saved him, forging an obsession that outlived her. To continue his mission, he devised a soul-transference ritual, inhabiting successive descendants across generations, including Roswaal J. Mathers, a female incarnation active during the Demi-Human War.

His current form features a towering frame, heterochromatic eyes (yellow left, blue right), and indigo hair paired with flamboyant, clown-like makeup accented in purple—a style mimicked after Hector, the Warlock of Melancholy, following their clash. Behind this eccentric facade lies a cunning strategist skilled in political manipulation, orchestrating events from Sanctuary, a refuge he founded for demi-humans that fuels speculation about his intentions.

Guided by Echidna’s Tome of Wisdom until its destruction, Roswaal’s schemes unraveled after losing a pivotal wager to Subaru Natsuki. Forced to abandon manipulation, he swore allegiance to Emilia’s royal candidacy through a soul-binding oath curse, risking annihilation if breached. Though compelled to cooperate, he retains latent ambitions, vowing to exploit time-loop scenarios should Subaru fail to protect loved ones.

Relationships reflect duality: he rescued the oni twins Ram and Rem post-tragedy, balancing genuine affection with readiness to sacrifice them for his goals. He shares mutual respect with Beatrice, Echidna’s former familiar, and a psychological rivalry with Hector, whose mannerisms influenced his persona. Interactions with Subaru evolved from gratitude to rivalry, stabilizing into an uneasy alliance post-Arc 4.

As a mage, Roswaal commands the Divine Protection of Sorcery, wielding all six elemental magics with expertise. His repertoire spans weather manipulation, fiery Al Goa spells, flight, and martial prowess—notably demonstrated by his female incarnation. His left eye nullifies hostile magic, augmenting combat adaptability.

Post-Arc 4, his ruthlessness wanes as he supports Emilia’s cause, though internal conflict persists. By Arc 8, uncertainty clouds his role against Subaru’s rising influence. The OVA *Memory Snow* captures his governance during a peaceful interlude, subtly underscoring unresolved tensions beneath his composed lordship.