Gyeong Woo Yeon met her first love, Lee Soo, in high school. Soo always helped Woo Yeon whenever she was in trouble and was sweet to her. One day, before Woo Yeon had a chance to ask him out, he told her that he’s leaving to study in the US. Ten years later, Soo returns to Korea and meets Woo Yeon. (Source: Viu)