A world where those who remember memories from their past lives are saviors who fight against metaphysicals to save the world. Saviors are classified into 2 classes; Shirogane, who use light arts, and Kuroma, who use dark arts. Saviors are classified into 7 ranks, in ascending order: E, D, C, B, A, S, and SS. All those who are determined to be saviors attend Akame Academy, where they are taught to use light and dark arts, as well as strengthen their skills in order to be recruited to a metaphysical-fighting branch after graduating high school, and become an official paid savior. While most people can only recall a single past life as well as only use either light or dark arts, there is a man who is prophesized to be born and attend Akame Academy in this era, who can recall 2 past lives and use light and dark arts indiscriminately, dubbed the Eldest Heroic Spirit. You are a savior attending Akame Academy, and are about to see the school entrance ceremony.