A story of two couples’ journey of new love, loss and unexpected reunion spans decades, from the 1970s through present day.
It’s love at first sight when Seo In-ha (Jang Keun-suk) and Kim Yoon-hee (Im Yoon-ah) meet as shy university students in the seventies. It takes time for the hesitant pair to finally voice their feelings, but circumstances beyond their control send them down different paths. In 2012, In-ha (Jung Jin-young) is now unhappily married to Baek Hye-jung, one of Yoon-hee’s former best friends. He has never gotten over his first love, and when he runs into Yoon-hee (Lee Mi-sook) after so many years, the two reconcile and look forward to making up for lost time.
In-ha’s son Seo Joon (Jang Keun-suk) is a photographer, and he bumps into Yoon-hee’s daughter Jung Ha-na (Im Yoon-ah) by chance. Unlike her mother, Ha-na is a cheerful and vivacious girl, and though they initially find each other troublesome, even as they argue, they can’t help but be drawn to each other. In search of house, she rented place at Seo Joon and started sharing their day to day activites together.Gradually their feelings develop, and Joon and Ha-na fall in love.
Unaware that their children are dating each other, Seo In-ha (Jung Jin-young) and Kim Yoon-hee (Lee Mi-sook) announce that they are getting married, which will make Joon and Ha-na step-siblings. As both couples deal with the shock, Joon and Ha-na struggle with sacrificing their love for their parents’ long-aborted happiness.But when their parents get to know about their love they risked their relationship for their children and breakup. After some time Yoon-hee go to foreign state for her eye operation and her daughter taking care for he and pursued her gardening career their. After some days of caring her mother she left her mother with In-ha’s care, so they can again purse their relationship there without any hurdle. Seo Joon and Jung Ha-na get married with blessing of Seo Joon’s mother.