Leaving the National Stadium, the 42.195 km course loops around Asakusa, Tokyo Tower, and other landmarks before returning to the starting point. This was the planned course for the Tokyo Olympics marathon before it was moved to Sapporo. What kind of encounters would you have if you walked this phantom course during the Olympics? A woman worried about COVID-19 goes to an idol concert. The owner of a bookstore in Jimbocho who regrets that it was once a viewing spot. Three days of walking through the night, listening to the voices of people encountered by chance along the way, and observing the present state of Tokyo.