1. Japan's transport infrastructure, in particular roads and bridges, was mainly built in the country's rapid economic growth decades. However, problems of infrastructure aging and scenery maintenance are causes of concern for citizens and civil authorities. Kumamoto construction company Amaken Tech has stepped up to help resolve these problems with a revolutionary new paint. This water-based paint is non-toxic and scentless, yet is strong against abrasion. It’s a revolutionary new option for the road construction industry, which still uses enormous amounts of long-lasting oil-based paint. In this half of the program, we investigate the traits and technology of this paint, which is finding its way onto roads all through the country. 2. Constructors of traditional Japanese buildings have a big problem: where do they get the kaya grass to replace kayabuki thatched rooves? Kaya growers are decreasing in number, as are the grasslands where one can harvest kaya. Meanwhile, in Aso, volunteers are gathered each year to burn down kaya grass to maintain farmland. Yasutaka Yamamoto from the Aso-based GS Corporation has started a new business, purchasing kaya grass harvested before burns, to be sold to kayabuki craftsmen in Kyoto. It’s helping to provide income to farmers in the off-season, and motivation to protect Aso’s grassland. In this half of the program, we talk with Yamamoto about his work to protect traditional architecture, and meet the people of Aso helping to gather and maintain kaya grass.