Tanizaki Junichirou is a member of the Armed Detective Agency, known for his mild temperament and sharp strategic mind. Often underestimated due to his quiet demeanor, Tanizaki is a steadfast companion who balances a compassionate nature with the ability to make tough decisions in critical moments. His loyalty, particularly to his sister Naomi, is a defining trait that shapes many of his actions and motivations. He has orange hair and hazel eyes usually wearing an oversized white t-shirt.