A story and memories about a woman and a man who meet by chance in summer, winter, and autumn, and about a car. * EP 1: Lee Sun, who has to deal with a car abandoned at an inconvenient time. While washing the car himself amidst high heels, dust, and passing students, he recalls past memories sealed within the car during a conversation with a used car dealer, Sangho. * EP 2: Delivery driver Taehyun goes on a business trip to a rural area to deliver a car to the recipient, Sohee. However, both the recipient and the sender refuse to accept the car, and the delivery driver finds himself trapped in a time loop between the male and female protagonists who seem to be time-traveling. * EP 3: As actress Ji-hyun heads to a film set, her ex-boyfriend Moonho sends his friend Sanghyun with the car, and their accumulated romantic feelings unfold during a drive.