We designed two AR markers for PORTAL with Nreal: A round table in front of a chair, and a large wall art with the size of 900mm x 900mm. When designing these AR markers, we addressed a number of constrains to improve to make them easy to detect from AR glasses, but also to harmonize them with the concept of PORTAL and other parts of the room interior. The table was designed as the main marker for the AR experience and the gateway to the PORTAL experience. The table marker was also designed in a marble-like style with a large logo in the middle to create a well-balanced impression as a marker and a designed interior object. The wall art is for drawing the user into the world of PORTAL when the experience starts and for creating a rich experience during the experience. The artwork was originally used at PORTAL BY JOSEPH. For the PORTAL booth, it was framed and displayed with multiple art objects to blend it in the room design. It looked like an art in an ordinary living room. The holistic approach to spatial design is important, especially for immersive experiences like PORTAL. We tried to make the markers blend into the space, rather than simply placing markers for device control. We believe this approach lets users immerse themselves more deeply into space and focus on experiences we want to deliver.