On one frosty evening, Do Kyungsoo, an underground vocalist, meets the one he's been searching for. This Christmas, reuniting with Park Eunhee was the best  gift he had ever recieved in his life. How will he react when he finally reunites with his other half?

Do Kyungsoo: The 25 year old vocalist spends his day roaming the streets, reminiscing the memories he has spent with her when they were young love birds. The day she left him, his world crumbled into pieces. During the night he sings his sorrows away at a bar owned by his cousin. After late nights at the bar, he suffers from insomnia as the memories of her haunts him in his sleep.

"I've been waiting for 4 years and I will wait forever until you come back"

Park Eunhee: The 24 year old pianist left her lover abruptly for nearly 4 years because of a scholarship from The Julliard School of Performing Arts in New York. Forced by her parents, the Park siblings left everything behind and were sent to the U.S for education. Without a proper goodbye to her faithful boyfriend of 3 years, and best friend of 8, Eunhee endured the pain for years and now has finally returned to where she started. But will everything be the same?

"The only thing I cherish in the world beside music is you"

Park Chanyeol: The 26 year old brother of Eunhee. After becoming a prodigious violinist and graduate of Julliard, he returns to Seoul to return his beloved sister's happiness.

"If you sacrificed your happiness, just for my happiness, I will not hesitate to give back yours"

Other Exo Cameos will be introduced as the story develops!