Located on the 25th and 26th floors of a high-rise, "Infinity" guesthouse offers panoramic city views and an exclusive space for private gatherings. Rooted in the concept of boundless imagination and cosmic exploration, the design integrates futurism through floating robot installations, infinity mirrors, mechanical hatch doors, and reflective stainless steel surfaces, creating a weightless, immersive experience. Cool-toned lighting and a rhythmic material palette enhance the futuristic atmosphere. Challenges such as low ceilings were solved through layered ceilings and reflective materials to expand spatial perception. Three themed rooms—"Garden of Rippling Light," "Steel Jungle," and "Lightyear Bar"—offer distinct yet cohesive experiences. Advanced audio-visual integration ensures high-quality entertainment within a constrained structure. Sustainability was prioritized through the use of recyclable materials, low-VOC finishes, energy-efficient systems, and smart environmental controls, establishing a new standard for low-carbon urban living.