This temporary pavilion, designed by renowned architect Kazuyo Sejima, was completed in 2024 at the Tokyo Metropolitan Teien Art Museum in Minato Ward. The structure, titled "Perpetual Moment—Time in Nature," serves as an exhibition facility that thoughtfully integrates contemporary architectural design with natural surroundings. Sejima's minimalist approach and innovative spatial philosophy create an immersive environment where visitors experience the interplay between human-made structures and the natural landscape. The pavilion exemplifies cutting-edge Japanese architectural practice while offering a unique perspective on temporal and spatial perception within art and nature.