Amai Mask, originally named Beaut, entered life burdened by a visage deemed repulsive, driving him to forge unyielding ethics and cultivate inner grace as compensation. Early in the Hero Association’s establishment, he joined under the alias "Secret Mask," hiding his face until a battle shattered his disguise, unveiling a transformed, radiantly handsome appearance—a monstrous metamorphosis sparked by self-loathing. This duality anchors his existence: a charismatic idol masking a tormented, monstrous core. As a multifaceted celebrity—hero, model, actor, singer—he wields fame to impose exacting standards on the Hero Association. Deliberately occupying A-Class Rank 1, he gatekeeps S-Class promotions, barring those he judges unfit, exemplified by his personal vetting of Saitama’s B-Class status and confrontations with Genos over S-Class responsibilities. His rigid moral compass equates heroism to merciless efficiency, sanctioning lethal force against even human collaborators. This creed drives him to execute Suppon defying direct orders and slaughter Boros’s surviving crew without remorse. During the Monster Association raid, he clashes with Do-S and Fuhrer Ugly, the latter’s hideous form momentarily immobilizing him—a vulnerability rooted in his fragile self-perception. His regenerative prowess mends grievous injuries, from torso evisceration to ocular impalement, though recovery rates fluctuate unpredictably. Interactions reveal a polarizing figure: arrogant clashes with Atomic Samurai’s disciples over strategy, venomous taunts branding Zombieman a monster, yet pragmatic alliances emerge, such as freeing Bushidrill from Do-S’s control or coordinating surface-team strikes. A critical juncture arrives as he teeters on monstrous transformation’s brink, halted only by memories of Blast’s past rescue, steelening his resolve to uphold heroism. Beyond battle, his celebrity thrives through concerts and films, frequently interrupted by monster incursions. He champions heroes as aspirational symbols, chastising peers like Pig God for failing to inspire youth. This juxtaposition—graceful entertainer and ruthless arbiter—epitomizes his struggle to reconcile societal ideals with heroism’s grim exigencies. Supplemental media appearances underscore his influence: recruiting heroes in omake chapters, sparring with Metal Bat over trivial grievances, and probing the Monster Association post-concert invasions. These vignettes cement his labyrinthine identity, straddling entertainment glamour and the shadowed machinations of hero governance.