Yeon Woo is a 24-year-old youth working at the post office in a small town. She's in the golden age of her days, except she has an innocent and introverted personality, and she's far from the usual storm and gale of life. She hasn't even tried drinking yet, let alone coffee and those around her consider her still young. However, she's completely different from her family. She has an irresponsible father, an impossible brother, a shameless grandfather and a very young brother. All they ever care about is... women.