Hikari Kirishima (霧嶋 ヒカリ, Kirishima Hikari), née Hikari Yomo (四方 ヒカリ Yomo Hikari), is the late elder sister of Renji Yomo, the late wife of Arata Kirishima and the late mother of Touka Kirishima and Ayato Kirishima who was killed by Kishou Arima prior to the events of Tokyo Ghoul.