In Japan, the Supernatural Disaster Countermeasures Division (SDCD) safeguards the populace from hidden threats. Amid their covert battles, a rift emerges when Kagura, raised by the Isayama family after her mother's death, forges a deep bond with their daughter Yomi. United as elite exorcists, their solidarity falters under the weight of duty and familial strife. As Kagura embraces her calling, Yomi treads a perilous path, blurring the lines between salvation and darkness.