Obstructed Illusion is a seat/table designed for visually impaired people. The starting point of the project was to develop an optical illusion for visually impaired people, but after several conversations with visually impaired people, it turned out that many objects in their daily lives felt like optical illusions. For example, seating in public areas such as train stations was mentioned. For visually impaired people, contrasts can often only be perceived at a distance. This object can be recognized as a seating object due to the black horizontal and white vertical surfaces.