In the peaceful town of Kyokoyama, the daily life of 17-year-old high school student Hitomi Layichi takes an unexpected turn. While leading an ordinary existence and even excelling in sports, her destiny changes when a monster seizes control of her body in the middle of a school day. Transported into a parallel reality, Hitomi finds herself amidst monstrous entities, putting her own existence in jeopardy. Will Hitomi's fate prove to be an inevitable curse, or will she manage to find the power to alter the course of her destiny and that of the entire world?