The thatched roofs found on traditional Japanese houses are declining in number. They're hard to maintain, and passing on the relevant skills is difficult. However, Sagara Ikuya is giving this ancient craft an innovative twist. He also works hard to develop the skills of young people. Thatched roofs represent the wisdom of our ancestors, who struggled to coexist with nature, and we discover how Sagara is using that tradition to explore new possibilities.