Nam-woo lives in a seaside village with his widowed mother, his grandmother and his cat, Yo. Unfortunately, his grandmother is ailing, his cat constantly runs away, his mother spends most of her time with her new boyfriend, and, to top it all off, his best friend is moving to Seoul! Overwhelmed by feelings of abandonment, Nam-woo escapes into a fantastic dream world where he meets the mysterious Mari. As two young boys discover the true meaning of friendship, they must also learn the difference between fantasy and reality. With stunning visuals and a haunting score, My Beautiful Girl, Mari, will enchant and mesmerize you.