Nami Kozono reigns as student council president at an elite academy, her authority underscored by opulent wealth and an imperious aura. Each morning, she glides to campus in a white chauffeur-driven limousine, flanked by obedient enforcers who enact her commands without hesitation. Her striking violet hair cascades in a high ponytail fastened with a pink bow, contrasting amber eyes surveying the school with calculated intensity. Towering over peers, she alternates between the standard uniform and flamboyant personal ensembles—crimson fur-lined jackets, polished dark boots, gold earrings, and a crucifix necklace dangling defiantly against her chest.

Openly lesbian, she openly dates fellow council member Junko Mochida, their clandestine trysts frequenting empty classrooms. Yet her dominance fuels relentless pursuits of other students, most notably Reika Kitami, a recent transfer subjected to aggressive seduction. After repeated rejections, Kozono falls victim to a witchcraft club’s love spell, twisting her into a submissive devotee of outcast Hiratani—a grotesque inversion of her male disdain. Public humiliations erode her prestige until the spell breaks, igniting vengeful fury. She orchestrates Hiratani’s savage beating and renews her crusade for Kitami, rebranding it as a quest for “purification.”

Spurned once more, Kozono infiltrates Hiroko Takashiro’s Rose Cross witchcraft club, witnessing a botched ritual that leaves Takashiro violated by demonic forces. Seizing opportunity, Kozono usurps leadership, pivoting the club toward summoning Satan himself. She engineers Kitami’s abduction, authorizing her thugs to assault the girl while demanding her vaginal virginity remain intact for ritual purposes—a order one assailant secretly violates.

At the Walpurgis Night ceremony, Kozono plunges a blade into Kitami as an offering, but Hell’s gates refuse to open. Madness consumes her; she slaughters the entire club with a ceremonial sword, denouncing them as deranged. As fissures to the underworld finally crack open, a dying Kitami retaliates, stabbing Kozono relentlessly until both collapse. This fatal clash catalyzes Kitami’s Satanic pact, weaving Kozono’s legacy into the academy’s cursed history.

In *Bible Black: La Noche de Walpurgis*, Kozono emerges briefly as a blonde-robed “Priest” overseeing Kitami’s sacrifice—a stylistic departure from her anime iteration yet consistent in her ritualistic downfall.

Her trajectory arcs from entitled aristocrat to power-obsessed tyrant, intellect and leadership corroded by vindictive pride. Occult practices, once beneath her, become instruments of control, mirroring her transactional worldview. Every rejection and failure spirals into destructive escalation, her refusal to yield ensuring annihilation—both others’ and her own.