" Will You Recognize My Heart? Or Will Beauty Come First? "

Siwon Choi, Tiffany Hwang and Yoona Im are childhood friends. While Siwon has always been attracted to the vivacious Yoona, he is completely unaware of the quiet Tiffany's love for him.

Siwon father decides to move to the States with his family to take up a new job, so Siwon has to go away from his friends. He makes Yoona promise to write to him via e-mail. But Yoona soon becomes occupied with other things, so it's the loyal Tiffany who writes Siwon; but she always signs with Yoona's name to help Yoona keep her promise.

Siwon and Tiffany have many things in common, and their e-mails bring them very close to each other. A decade and a half later, Siwon returns to Korea for a short vacation. By now, he's in love with the girl he has been writing to, and believes he can recognise her at first sight. .