"Square JS" is a complex facility owned by the Japan General Housing Life. At Square JS, we are conducting the "Thermo Experiment displays," which uses a thermographic camera to capture and record the differences in insulation properties of living spaces that vary depending on materials and construction methods. While many customers, including apartment management companies, public housing corporations, and local government officials, visit the facility based on the keyword "danchi," it has been difficult to fully understand displays's technical content. Therefore, through this video, we show that the thermal environment of living spaces has improved due to changes in the times, construction methods, and materials, and then provide visitors with a tour of the actual space so that they can smoothly understand the complicated contents of displays. < Video Story >Showa 40s. An inquisitive elementary school student, Gaku learns about the insulation of living spaces from his father, Kiyoshi, the architect of the housing complex, and becomes interested in future research and improved spaces. The space twists and you're transported back to 202 X! Kiyoshi is very excited about the future space. In studies, students learn that the temperature of a living room changes depending on the materials and construction method. When they returned to the Showa period, their mother Keiko had prepared a meal and was waiting for their return. They enjoy a happy family while imagining the future that will one day come to school.