Arata Kirishima (霧嶋 新, Kirishima Arata) is the father of Touka Kirishima and Ayato Kirishima. The ghoul investigators named him the Corpse Collector (骸拾い, Mukuro Hiroi). Yukinori Shinohara and Kureo Mado had exposed Arata's identity, and the investigators were subsequently able to catch Arata.