Toshihisa Furuya is the chief executor of the Bureau of Supernatural Investigation. He sports a tall, slim frame typically clad in a long black robe and wears a necklace featuring a cross emblem. His expression is usually stoic and serious, creating an initial impression of detachment that conceals a core of kindness and loyalty towards colleagues and subordinates. Furuya wields advanced magical abilities, specializing in high-level spells like exorcism, purification, and enervation to combat dangerous supernatural threats. He frequently collaborates with Jiro Kusano on complex investigations and guides apprentice Roji Sasaki in learning magical techniques and investigative protocols. His approach blends technical precision with a profound sense of responsibility for shielding others from spiritual dangers. A significant element of his past involves a traumatic incident from his youth, the details of which emerge gradually. This event inflicted lasting emotional scars, shaping his reserved demeanor and fueling his empathy for individuals facing similar psychological or supernatural hardships. Despite his expertise, he continues grappling with these unresolved experiences, which inform his commitment to justice and redemption in his duties. Interpersonally, Furuya communicates sparingly but forges strong bonds with colleagues such as Muhyo and Kusano. His loyalty manifests through decisive actions, especially in critical scenarios demanding teamwork. Interactions with peers and his protégé foster incremental emotional openness over time, though his fundamental stoicism endures. He maintains professionalism while acknowledging reliance on trusted allies during operations. His character development traces a path from an isolated practitioner to an integrated team member. An early reliance on self-sufficiency yields to accepting collaborative support, particularly evident in joint efforts against entities like the spirit Sophie. His backstory connects with series antagonists, including figures from his magical training days, adding complexity to his motivations and ethical stance on supernatural justice.