TV-Series
Description
Cusack, a high-ranking demon forged from the fractured essence of the Original Demon, serves as a pivotal enforcer of the Demon King’s will. Once half of a unified entity punished for rebellion, he and Chandler were tasked with mentoring the Demon King’s heirs—Cusack guiding Zeldris, the younger prince. His striking visage features hot pink hair swept into a long braided ponytail, a meticulously groomed mustache he touts as the Demon Realm’s finest, and a jagged mark beneath his left eye. When unleashing his true form, his stature elongates, hair bleaches white, draconic wings unfurl, and his chest bears a cross-shaped emblem of power.

Bound by unyielding loyalty, Cusack champions Zeldris’s claim to the throne over Meliodas, openly challenging the Demon King’s perceived favoritism. His composed demeanor fractures only when Zeldris faces peril or his own authority is doubted, revealing volcanic rage. This pride extends to his vanity over his mustache, which he reacts to protectively when damaged.

A strategist wielding dual blades, Cusack dominates battlefields with precision, though he occasionally prolongs fights out of caprice. His signature ability, Resonant, manipulates foes via eye contact—exemplified when he forces Arthur Pendragon to impale himself with Excalibur. At full strength, his power surges to 168,000.

During the Holy War, Cusack schemes to crown Zeldris by amassing Commandments, clashing with Chandler, his counterpart devoted to Meliodas. Their rivalry echoes their shared origin, culminating in a fleeting remerger as the Original Demon to face adversaries. Despite his machinations, Cusack’s miscalculations jeopardize Zeldris, prompting the Demon King to erase him as retribution.

Beyond mentorship, Cusack’s bond with Zeldris blends paternal devotion and dutiful service, though his butler skills falter in mundane tasks like brewing tea. His dynamic with Chandler wavers between antagonism and reluctant camaraderie, rooted in their fractured history. Though destroyed, his legacy endures through Zeldris’s resolve and the aftershocks of his ambitions.