35-year-old architect Seung-Min (Uhm Tae-Woong) receives a visit at his office from a woman. Seung-Min doesn't recognize the woman at first, but then realizes the woman is Seo-Yeon (Han Ga-In). Seo-Yeon is his first love, but he hasn't seen her since his freshman year in college. Seo-Yeon now has a request. She wants to hire Seung-Min to rebuild her home on Jeju Island.
15 years ago, Seung-Min (Lee Je-Hoon) is a naive young man beginning his architecture studies in college. He first meets Seo-Yeon (Bae Suzy) in his Architecture 101 class. As they work on a class project together, Seung-Min and Seo-Yeon begin to fall in love.
Back to the present day, Seung-Min is hesitant to take Seo-Yeon's job offer. Seo-Yeon persists and even goes to his boss with her wish. Seung-Min now has no choice, but to take on Seo-Yeon's home project. Old memories of love and heartbreak will soon resurface, as they find themselves at different junctions in their lives.
AWARDS
| Year | Award | Category | Recipient |
| 2012 | 48th Baeksang Arts Awards | Best New Actress | Suzy |
| 2012 | 6th Mnet 20's Choice Awards | 20's Male Movie Star | Lee Je-hoon |
| 2012 | 6th Mnet 20's Choice Awards | 20's Female Movie Star | Suzy |
| 2012 | 6th Mnet 20's Choice Awards | 20's Booming Actor | Jo Jung-suk |
| 2012 | 5th Style Icon Awards | First Love Fantasies | Suzy |
| 2012 | 16th Puchon International Fantastic Film Festival | Fantasia Award | Lee Je-hoon |
| 2012 | 21st Buil Film Awards | Best Screenplay | Lee Yong-ju |
| 2012 | 32nd Korean Association of Film Critics Awards | Best Music | Lee Ji-soo |
| 2012 | 33rd Blue Dragon Film Awards | Best New Actor | Jo Jung-suk |
| 2012 | 33rd Blue Dragon Film Awards | Popularity Award | Suzy |
| 2012 | 20th Korean Culture and Entertainment Awards | Best New Actor | Jo Jung-suk |
| 2013 | 4th KOFRA Film Awards | Best New Actor | Jo Jung-suk |
