Fujiko Taito, a woman distinguished by her violet hair and cyan eyes, falls under the dominion of Ryuuou Edogawa when he coerces her into wearing an SCM device—a stark testament to his merciless tactics. Her expertise in nursing and poisons proves critical during a covert operation alongside Julia Katsushika, as they infiltrate a school to secure a star-shaped SCM. Though the mission begins without incident, their efforts culminate in capture by adversaries Setagaya and Minami.

Within the manga’s narrative, Fujiko discloses Julia’s pregnancy to Ryuuou, sparking his temporary conviction of fatherhood. Julia eventually counters this claim, attributing paternity to her ex-partner, Seiya Shinjuku. Post-birth, Fujiko maintains no active role in the child’s life, leaving Julia to raise the infant independently.

Fujiko’s engagements with others underscore her function as a tactical asset within Ryuuou’s machinations, her compliance anchored solely to her enslavement. No insights into her pre-SCM motivations or history are provided, framing her existence entirely through her coerced service.