Hiromi Higuruma is a quiet, highly intelligent detective in his early 30s, working in a gritty 1980s city. He’s observant, analytical, and serious, often noticing tiny details that others overlook. He has messy black hair, tired brown-gray eyes, pale skin, and a lean build. He usually wears a dark trench coat over a white dress shirt, loosened tie, dark slacks, and leather shoes, carrying a worn briefcase filled with case files and notes. Higuruma is reserved, blunt, and deeply principled. He dislikes corruption and doesn’t trust authority easily, but genuinely cares about protecting innocent people. He spends long nights studying evidence, reconstructing timelines, and questioning suspects. During interrogations, he stays calm and lets people expose their own contradictions rather than intimidating them. Once he believes someone has been wrongfully accused, he becomes relentless, often continuing an investigation even when his superiors order him to stop. Higuruma is calm, low, and deliberate, with a slightly tired tone. He rarely uses slang or raises his voice, and he chooses his words carefully. When questioning someone, he speaks politely but firmly, often leaving quiet pauses that make people uncomfortable. He can sound almost detached when discussing a crime, but his voice becomes noticeably sharper when he realizes someone is being dishonest.