Majiri Agakura, born Riddhe Malacougar, is a centuries-old vampire who crossed into Earth from another realm to command the Agakura Clan—a lethal syndicate of assassins and mercenaries. Once revered as the "Divine Ancestor" in her homeland, she forged her legend by annihilating an entire vampire nation to avenge her sister Silk, executed after being falsely accused by political rivals. This cataclysmic vengeance propelled her through a portal tied to the Bastard Children of Sabaramond, arriving on Earth a century before the present timeline. Assuming the name Majiri Agakura, she molded her clan into a surrogate family bound by unwavering loyalty, demanding members adopt the Agakura surname. Exceptions like Misaki Sakimiya, labeled a "cousin" to keep her name, underscore Majiri’s calculated flexibility. She enforces a rigid hierarchy, exemplified by Momoya Agakura’s rank as seventh-lowest in skill. Her striking appearance merges authority with youth: long black hair frames a dark sailor uniform marked by a crimson "Head of the Family" armband. Moon-shaped earrings glint beside an umbrella bearing jagged black-and-gray patterns, while a vintage school bag dangles charms symbolizing clan unity. Majiri oscillates between mischievous charm and chilling ruthlessness. She addresses members like Momoya and Xiaoyu Lei with affectionate epithets like "sweet little brother," yet metes out brutal discipline to enforce obedience. Her relentless drive to expand the family led her to sever Xiaoyu’s limbs to force his allegiance. Though he refused, gaining prosthetics from Polka Shinoyama, she persists, treating his defiance as a game. In a Shinjuku warehouse clash, Majiri disabled Xiaoyu’s prosthetics and targeted Misaki after witnessing her latent vampiric power. Combat-wise, she dominates with near-teleportation speed, surgical precision in dismemberment, and an uncanny ability to track kin across any distance. Beyond the clan, her century-old rescue of Mitsu Haigawara and Takajirou Toura from a fiery cage indirectly birthed the Fire-breathing Bug entity. Recently, she partnered with the shadowy operative Lemmings to probe disappearances in an abandoned hospital, cementing her grip on covert operations. Though steeped in violence, Majiri’s loyalty to her slain sister Silk remains sacrosanct. This duality—fervent protector and merciless strategist—anchors her as both a revered matriarch and a perilous force within the underworld’s shadowed tiers.