35-year-old architect Seung-Min receives a visit at his office from a woman who later he realizes is Seo-Yeon, his first love. He hasn';;t seen her since his freshman year in college they begin to fall in love after working on a architecture class project together. 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..