Takeda is initially portrayed as calm and collected. While he takes and solves cases calmly, he tends to overlook certain details during investigations, resulting in the arrest of the innocent party. Despite his mostly pleasant behaviour however, Takeda is actually very sadistic and selfish. He enjoys seeing people in agony or sorrow, and purposely became a police officer just so he could see the victims or their family and friends' faces when a crime happened. After the Histerrier Case it is revealed he was one of the officers assigned to investigate the murder of Sasazuka's family in the past, where he noted his liking for Sasazuka's empty expression
