student council and takes on the name of Himea Saito. Kurenai Gekkou, a freshman and also the student council president of Miyasaka High, is a self-proclaimed genius. Nine years ago before the starting tumeframe of the story, due to a certain deed committed by his younger twin brother, Hinata, Gekkou was prompted to constantly seek out power, initially driven by the fear for his life, and later motivated by the prospects of revenge. Gekkou is demonstrated to be quick-witted and highly intelligent. He wields an ancient fencing-like sword known as Spell Error, and is trained in several traditional arts of exorcism. As the student council president, he has made a contract with the lightning demon Mirai and is tasked to be the guardian of the Holy Ground (聖地)( a location with certain special properties over which Miyasaka High was built). He claims Mirai as his property and is very possessive over her. His superiority complex is often shown by his self proclamation of Genius, and belief that he is stronger than his brother. Also a student of Miyasaka High despite her age, Mirai is a lightning demon that takes on the form of a cute, 14-year-old bishōjo. Initially tasked to kill Gekkou, she later went on to form a contract with him as she became unable to release her powers without his consent. While she is considered to be an upper-class demon of noble blood, most of her powers are usually sealed away by Gekkou and can only be re-activated with his permission, upon which her hair will turn golden and her body will be wrapped in a vortex of lightning. She is described to be excessively boisterous and annoying to Gekkou, though on the flip side, she is often irritated by Gekkou's apparent indifference to her existence. Her favorite pastime is reading manga and drawing, whilst her favourite drink is Dr. Cinnamon. A girl with medium length hair, Haruka is the classmate and childhood friend of Taito. She carries romantic feelings for Taito. Her role is revealed to be of an observer later in the story, though she only knows this when her other personality is in control. Her other personality lacks emotion compared to her counterpart and is aware of the events around her. Younger identical twin brother of Gekkou. Described to be cold and emotionless, he sees all other humans, including his own brother, as inferior to