Inspector Shigeki Katsumata (勝又 重喜, Katsumata Shigeki?) is the lead investigator of Hirose's incident. He seems to be a normal police officer but is soon revealed as having powers and no regard for human life. He holds a piece of the heart, and like the other two wielders, Yukie and the Poet, Katsumata can alter the minds of other comrades by touching their heads.