In the near future, to address traffic congestion and verticalization caused by population growth, Tokyo was rebuilt around the concept of city sharing, where people share urban space by transforming roads and city structures according to the time of day. A woman named Nico is walking through the city. She is enjoying her long-awaited day off; however, she does not know what to do or who to spend time with. She hopes something exciting will suddenly happen. Then, a truck passes right in front of her. The loud music and flashy decorations of the vehicle remind Nico of the car everyone is talking about on the internet. As soon as Nico sees it, she runs after it and bumps into Gatsu and Makito. Nico gets into their latest A-Class, and they chase the truck, driving through the city that is rapidly changing its form.