The setting is a private high school where the idea of “saviors” is central. These saviors are individuals who have awakened memories from their previous lives. The narrative follows a young boy named Moroha Haimura as he enrolls in this exclusive school. Within the school, there are two distinct groups: Saviors, who combat foes using weapons and techniques derived from the Puraana powers within themselves, and Kuroma, who eliminate adversaries using magic that manipulates Maana powers, transcending the laws of physics. Moroha Haimura is unique as he is the first individual to have past lives as both a Shirogane and a Kuroma.