Route 439 is a national highway that cuts across the mountainous island of Shikoku, in southwestern Japan. In some spots, it is barely 2 meters wide and poorly maintained. People come from all over Japan to drive along the 340-kilometer-long rugged road connecting many small villages. Some people living along this route are self-sufficient and live on a diet mostly consisting of edible wild plants, freshwater fish and even Japanese pit vipers. Residents live a free life surrounded by lush nature. Over 3 days, we drive along Route 439 to meet people living amid Japan's traditional landscape.

For 62 years, a rickety roller coaster that has a top speed of just 42 kilometers per hour has been a popular attraction at Hanayashiki, an amusement park steeped in history in Tokyo's Asakusa district. Many of the people riding this slow roller coaster are adults, screaming as the ride takes them back to their younger days. Why are people drawn to this aging roller coaster? For 3 days, we listened to the stories of people coming to this nostalgic ride.