Tae-woong Eom

35-year-old architect Seung-Min 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. 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 is a naive young man beginning his architecture studies in college. He first meets Seo-Yeon 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.

Easy-going Dong Joo (Tae Woong) hasn't been too organized about his life. While bank teller Song Kyung (Jung Ryeo Won) plans everything. They both get diagnosed with a terminal illness. It is said that polar opposites attract but is it true? Neither of them plan on falling in love with each other, but will this new and unexpected meeting change that.