Sandalphon, an angel embodying the virtue of diligence, is driven by an unyielding work ethic rooted in her desire to earn respect for the sake of her younger sister, Metatron. Her relentless pursuit of validation manifests in inventive creations meant to showcase her capabilities, though her habitual haste and carelessness often undermine these efforts, leaving behind flawed, incomplete results. Paradoxically, her identity as a paragon of diligence clashes with her frequent naps and breaks, exposing the tension between her aspirations and her actions.

Her anime design features light blue hair trimmed to neck length, piercing purple eyes, and dark skin, accentuated by armor, a headband, and wings attached to her head—a blend of martial and celestial elements. Beneath her stoic exterior lies a personality marked by pessimism and self-sacrifice; she routinely neglects her own needs to prioritize Metatron’s welfare. This compulsion fuels her quest for high-ranking angelic status, yet her rushed methods and inattention to detail persistently sabotage her inventions.

Her bond with Metatron anchors her motivations, compelling her to model resilience while concealing private anxieties about her perceived physical shortcomings. These insecurities amplify her fear of inadequacy, further straining her efforts to balance her sister’s expectations with her own imperfect execution.

Within her narrative role, Sandalphon’s struggles reflect the clash between her dutiful ambitions and the frailties of her character, all while navigating the weight of familial loyalty and the elusive ideal of perfection.