Jun'ichirō Tanizaki is a slim young man with vibrant orange hair swept to one side and secured with a silver clip, complemented by watchful hazel eyes. His casual attire features an off-white V-neck sweater layered over a black undershirt, light blue pants, and brown shoes, often accented by a red sweater knotted at his waist. In high-stakes scenarios—such as the Armed Detective Agency’s framing as terrorists—he dons tactical gear like white hooded suits or military-grade riot armor, showcasing situational adaptability. Quietly composed among his peers, he balances unassuming restraint with steadfast reliability in collaborative missions. Pragmatism defines his choices: survival and colleague safety take precedence, driving him to employ threats against civilians or uneasy alliances when necessary. This moral flexibility occasionally sparks rash decisions that risk wider stability. His most visceral trait is an obsessive devotion to his younger sister, Naomi, with whom he shares an apartment. Threats to her provoke lethal retaliation, revealing a ruthless core beneath his calm exterior. The ability *Light Snow* conjures illusions within a controlled radius, often manifesting as synthetic snowfall. It distorts real-time perception and falsifies recorded media, enabling covert operations, tactical diversions, or strategic misinformation during missions. Prior to his current role, he was a student, though his family history beyond Naomi remains obscured. A brutal entrance exam simulation left psychological scars, its memories buried due to trauma. He later navigates critical conflicts like the Guild and Cannibalism Arcs, adjusting tactics and appearance to counter escalating threats. The Hunting Dogs Arc strains his loyalty as crises jeopardize the Agency’s survival. Domestic skills shine through his proficiency in cooking—Hayashi rice being a specialty—and a routine-bound civilian life starkly opposing his perilous profession. His shared apartment, unit 203, playfully references the Japanese term for “older brother” (*nii-san*), alluding to their close, ambiguously intimate sibling dynamic.