"My Sassy Girl" (2003) is a South Korean romantic comedy film directed by Jae-young Kwak. The story follows a college student named Kyun-woo, who encounters a quirky and unpredictable girl, The Girl, on the subway. Their chance meeting leads to a series of humorous and heartwarming events as they navigate their budding relationship. The film is based on a popular online story and became a cultural phenomenon in South Korea. It explores themes of love, friendship, and the complexities of relationships, showcasing the unique dynamics between the two main characters as they learn from each other.