Ukon (右近 Ukon): A 100-year-old child doll made in the early Meiji era by a famous puppet maker. When Sakon operates him, he appears to come to life, having a very distinct personality that differs drastically from Sakon's reserved, quiet nature (when he holds Ukon); however, the two continue to have a strong sibling like bond. He is loud, talkative, rude, and likes beautiful girls. He tends to jump to conclusions in his deductions of who the criminal is, and becomes irritated if Sakon does not tell him what he is thinking or who he suspects is the criminal, often relying on him to explain his deduction of the crime. He is also the one to inspire confidence in Sakon and the victims of the case they are trying to solve. He also has the ability to allow the souls of the dead to take possession of his body to listen to their final words before their death, which often comes in handy when solving mysteries.