Under the surface of the modern city, there is an inner world composed of abnormal phenomena caused by "relics". There are some objects in the world that are contaminated by strong emotions or abstract concepts, which are called "relics." For example: a dagger that harbors the concept of "betrayal", and the person stabbed by it will be betrayed by the person closest to him; a car that carries the concept of "eternal waiting" People who sit on the Station Chair will be trapped in a time loop until they are forgotten. Contact or use of "relics" will be "contaminated" by its concepts, and people who are too contaminated will become "Distorted" - monsters that have lost their minds.
