This project is a house with a long and narrow multi-story space. The designer utilizes the space characteristics, considers the client’s habits and needs, connects the floor areas with "light", and uses the "patio" to introduce sunlight, which cleverly blends the simplified, linear and geometric space concepts in modern style. The design team used track lights and indirect lighting to create the“snake” game concept to echo the light and shadow from the patio while enabling the view to extend to resolve the problem of darkness in the narrow and long space.