Jin Ha Kyung, Korea's national weather prediction service, has chosen to isolate herself from the rest of her coworkers at the Korea Meteorological Administration because she likes to follow the rules and keep her personal and professional life separate. When the free-spirited Lee Shi Woo is hired, he charms Jin Ha Kyung with his brilliance and concern for the weather, gradually breaking down the boundaries Jin Ha Kyung has placed around her heart.