Haruka Kotoura is a 15-year-old girl who was born with the psychic ability to read minds. As a child she blurts out what people around her are thinking, too young to realize that these thoughts are the person's true feelings which upsets them when they are revealed in public. She is branded a compulsive liar by her teachers, ridiculed by her classmates and loses all of her friends. The strain gets to be too much on her parents as well after she inadvertently exposes that they are both having romantic affairs. Abandoned by her mother into the care of her grandfather Haruka becomes a recluse, distancing herself from everyone, concluding that she only brings people bad luck.