City Hall is a drama that will deal with politics in a romantic comedy genre. It's about the happenings between a young woman mayor and an elite bureaucrat. Jo Gook (Cha Seung Won) is an exceedingly smart government official. He passed the Higher Civil Service quickly and basically is the perfect guy. But being a deputy mayor is not enough for him. He lives with the dream of becoming South Korea's President. He should have easily gone straight to the top, but due to an unexpected incident, he gets dispatched as a deputy mayor for a provincial small town, Inju City, where Shin Mi Rae (Kim Sun Ah) was working. Shin Mi Rae is a low-ranking secretary in Inju, but she works her way up in becoming the youngest City Mayor. As their paths met, they have to deal with each other's personal and social differences. But despite their constant bickerings, would they end up in each other's arms?