Designing a product like writing a novel. If writing a novel is an act to hide reality into fictions, this is an act to hide fictions into reality. What we focus on are errors that occur in perception. Behind the errors are psychological natures and abilities such as visual completion, preconception and imagination and by approaching them we create a mysterious product that you don't get how it was realized at first glance. In this exhibition, we will show five lamps that were created under this idea. We arrange lamps that bring small surprises in a room.