Sang-min (Kim Rae-won) is a college student who has just returned to Seoul after studying abroad. He thinks of himself as a ladies' man and chases after nearly every pretty girl who crosses his path. He ogles a girl at the airport who turns out to be Bo-eun (Moon Keun-young), who's there to pick him up. Bo-eun is only 16 and still in high school. Her grandfather (Kim In-moon) raised Sang-min's father (Han Jin-hie) after Sang-min's grandfather died, so the two are practically family. Sang-min and Bo-eun get a shock when they learn that her grandfather promised that their grandchildren would one day marry. Her grandfather is in poor health (he pretends it's worse than it is to further his plan) and his "dying wish" is for Sang-min and Bo-eun to wed. Though they tease each other like siblings, the pair cannot refuse the old man's wish, so they make plans to wed. Bo-eun has a crush on Yong-joo (Chan Yoon), her school's star pitcher, and she's too embarrassed to tell anyone at school what's going on. Her best friend, Ji-su (Kim Bo-Kyung), who also likes Yong-joo, finds out. The couple are reluctantly married and go off on their honeymoon, but Bo-eun bails at the last minute, leaving Sang-min on the flight alone. When he returns, they put on an act for their families, pretending the trip went well. But things get more complicated when Sang-min is assigned to teach at Bo-eun's school, and the two have to go to great lengths to keep everyone from finding out that they are husband and wife. My Little Bride was directed by Kim Ho-jun, from a script by Yu Sun-il. It was shown at the 2004 New York Korean Film Festival.