Tadahiro Amatsu has always been marked by his two different-colored eyes, one brown, one light hazel. A hidden darkness behind his left eye draws the attention of the masked sorcerer Ayatara Miramune and his demonic forces. To counter the demons that threaten their town, Yuzu Hieda, a priestess in training, gathers four other girls from her high school. Under the guidance of Yuzu’s older sister, Kurako, the five young priestesses undergo months of intensive training to master their abilities.