Yoon So So leaves on a trip to Europe with her boyfriend she met in college despite her parents’ disapproval, dreaming of a romantic journey. A few years later, her boyfriend heartlessly comes back to Korea alone, leaving So So behind. So So couldn't help but start working as a tour guide in France to make a living. She leads a group of people traveling with the “Luxurious Premium Tour Package: 1 Week in France”. So So always does her best so that those traveling to a faraway place can make the best memories of their lives. However, this team isn’t easy to break the ice. A man that was dumped by his girlfriend, a couple that has been dating for 10 years, an old couple that growls at each other during the entire trip, and father and daughter that seem like strangers… The members couldn't be more troublesome. Especially, San Ma Roo, a guy who travels alone in this group, seems very depressed and out of his mind. He fought with his girlfriend 3 days before the trip and had to leave her behind and come by himself. He is a nuisance from day one. So So is worried he might get into trouble during the trip, and keeps an eye on him all along. Her gut feeling proves right, as Ma Roo loses his wallet and the two are left alone in the city. The two get to know each other better as they spend a day together in an unfamiliar place. After sharing each other's pain from previous relationships, they comfort each other and start to develop feelings mutually. The trip comes to an end and Ma Roo has to leave for Korea. They say goodbye at the airport without being able to express how sad they are to part. However, such feelings may lead to another encounter. Will So oS and Ma Roo be able to meet again? (Source: JTBC)