Who Caused the Traffic Jam?.At an elevated highway, Potato arrives at the back of a long traffic jam, making his driver, a female office worker (Mizuho Misato in the live action scenes), worried about coming to work on time. The cause of the congestion is revealed to be a headphones-wearing, speaker-mounted purple DJ Molcar listening to music and its equally distracted driver (Tomoki Misato) watching guinea pig videos on his cellphone. Back at the tail end of the jam, an ambulance Molcar comes behind Potato, its extreme anxiety being caused by its main passenger, a woman in critical condition with her male companion at her side...