Since its establishment in 2003, the architectural practice SUEP. has been engaged in design activities based on the theme of “symbiosis with nature”. Led by Hirokazu Suemitsu and Yoko Suemitsu, the practice’s focus lies in not only bringing happiness to people or to the Earth, but to both. This book presents ten architectural projects undertaken by the SUEP. team, introduced as a series of stories in order to highlight the trajectory of their thinking. In addition to these works, numerous investigations and studies conducted during the process of design and creation provide clues for thinking about the future of our planet.