She is a girl with supernatural powers who was raised by a female ghost since she was a child. The dark temperament made her become a lone star-like existence. No one wanted to get close to her, and she could only keep company with ghosts and a black cat. But all spirits will disappear after being together for a period of time, which has always troubled her.
Until she entered a private high school for a scholarship, the haunted dormitory and teaching building, one after another, involved her every time. And the popular boy, who calls himself an exorcist, always shows up suddenly to deal with trouble with her. As time goes by, she becomes less and less understanding of the people around her, and even doubts her own existence. At the same time, her body became weaker and weaker.
She possesses supernatural powers, lives by sucking spirits, and has a split soul. Is she still a human after all?
One is an exorcist boy who represents justice. One is her brother who fell into the devil's path for her thousands of years ago. How to choose?