The The artwork discusses the issue about how to achieve balance in the rapid change society, and build the two extreme worldviews of utopia and dystopia through mixed reality. Audiences touch the colorful paper cranes to discover the inside fortune sticks, and interact with the cyber-physical space in emotion contagion. Natural language processing was adopted for sentiment analysis according to the colors of paper cranes in content generation. From the sequence of emotion contagion, the generated digital postcard allows audiences to collect their interactive experiences, and that helps to arose deep reflections of individual state.