Sayako had no worries about food and clothing since she was a child, and lived a pampered life. However, as she grew up, her personality became more and more gloomy and autistic. Her classmates were always "bullying" her, and the number of people who stood by and watched gradually increased. She felt the world's indifference and malice towards her. With the appearance of "Nightmare", the seemingly peaceful world begins to gradually become distorted. Does this world make the girl weird, or does this girl make the world weird?