"My Girl and I" features the well-known plot of an ill-fated couple. Su-ho (Cha Tae-hyeon) is a plain high school boy, and Su-eun (Song Hye-kyo) is a bright and beautiful girl in the same school. For some unknown reason, Su-eun has a crush on the boy, and for equally mysterious reasons she rescues Su-ho in the sea (though he doesn't know who actually saved him). In the process, Su-eun loses her pager. When she discloses the relationship with Su-ho at school, despite envy and disbelief from other classmates, she asks Su-ho to buy her a pager so that they can communicate with each other through voice messages - a secret communication channel since So-eun's parents are quite strict. The way the couple develops affection is bearable, helped by images of a beautiful seaside village and equally enchanting coastlines. Supporting characters like Su-ho's grandfather (Lee Soon-jae) jazz up the otherwise too simplified storyline.