Storyline
Liese Hildebrand is a sister and special agent of the Vatican's organization known as the Sisters of the Thorn. She receives a mission to travel to the remote town of Mater, where unexplained spiritual disturbances have been reported.
Upon arriving in the area, Liese begins investigating the source of the disturbances and soon discovers that a demonic presence is responsible for the chaos and destruction spreading through the region.
During her investigation, Liese encounters Mitsuru Aragami, an exorcist who is also pursuing the supernatural threat. The two do not initially see eye to eye, but circumstances eventually force them to cooperate.
Together, Liese and Mitsuru venture deeper into the dangerous area and confront the demonic forces behind the disturbances. Liese must rely on her training, her sword, and her determination to defeat the enemies threatening Mater and complete her mission.