Alan Sylvasta, CEO of Sylvasta Pharmaceuticals and Anima-City’s clandestine puppet master, masks his true nature as a pureblood beastman descended from Raymond Sylvasta—a historical architect of ruin who annihilated the ancient beastman city Nirvasyl under false pretenses of containing Nirvasyl Syndrome. Publicly posing as human, Alan perpetuates his family’s supremacist legacy, viewing hybrid beastmen as genetic aberrations and orchestrating societal strife to dominate both humanity and his "impure" kin.

He covertly fuels human-beastman tensions by backing the Church of the Silver Wolf, a cult led by his collaborator Nazuna Hiwatashi. Through staged betrayals, he induces mass outbreaks of Nirvasyl Syndrome, a stress-triggered mutation, then offers a "cure": a serum extracted from Michiru Kagemori and Nazuna’s blood. This serum forcibly reverts beastmen to humans, erasing their identities while elevating Sylvasta Pharmaceuticals as a heroic entity.

His three-headed golden wolf form—a fusion of Cerberus’ mythic dread and kaiju-scale destruction—embodies his engineered "purity" and eugenicist ideology. Yet this monstrous guise betrays his susceptibility to Nirvasyl Syndrome, unraveling his claims of genetic superiority. Defeated by Shirou Ogami, the true Silver Wolf, Alan is spared and injected with Michiru’s curative blood, reverting him to a mortal state. Disgraced, he vanishes into obscurity, though whispers of his influence persist.

Outwardly composed and authoritative, Alan weaponizes discrimination to advance his vision of a pureblood hierarchy, rooted in centuries of calculated bloodline preservation. His schemes expose the corrosive consequences of elitism, systemic oppression, and the fallacy of genetic essentialism, framing him as both architect and casualty of the cycles he perpetuates.