Rin Obami, a cunning strategist and master manipulator, hails from the Obami lineage of the Hundred Devouring Families, a clan infamous for perfecting deception. Driven by the ambition to dethrone Kirari Momobami as Hyakkaou Private Academy’s Student Council President, he seeks to elevate his family’s status through calculated dominance. His sleek black hair features a sharp, straight-cut fringe and elongated side bangs framing his jawline, with a subtle curl accenting the right side. Large, dark pools for eyes enhance his striking features, weaponized to charm and disarm. He dons Hyakkaou’s male uniform—a crimson blazer edged in black, crisp white shirt, black tie, slate-gray jeans, and polished brown loafers. Raised in the deceit-steeped Obami clan, Rin’s psyche bears scars from a pivotal childhood game: after cheating to win, Kirari deliberately conceded to shield his dishonesty, seeding an enduring inferiority complex. This humiliation fuels his obsession to outmaneuver her and claim superiority. To usurp power, Rin engineers "Scumcoins"—a transactional voting system exchanging political support for redeemable currency, tradable for cash, goods, or obligations. This scheme weaponizes student alliances against Kirari’s regime. He masks his duplicity behind a veneer of courteous composure, disarming targets with measured speech while orchestrating intricate gambits. A tactical intellect dissects opponents’ vulnerabilities, yet his inflated self-worth blinds him to potential overreach. Relentless ambition drives him to sabotage rivals, particularly Kirari, intertwining their fates in a high-stakes rivalry. Rin’s machinations ripple through the academy, destabilizing hierarchies and sparking conflicts. His ideological war with Kirari anchors themes of ruthless ambition and psychological warfare, while tensions with kin like Ibara Obami expose layered loyalties and strategic betrayals, propelling the narrative’s intricate power struggles.