Yuri and Yunho were seperated twins. Their parents were killed. They were adopted by different family. Yuri was adopted by Kwon family whilst Yunho was adopted by Jung family when they were 5.   One day, Yunho open his old albums and saw his twins. Since that day, Yunho decided to find her. One day they (YunRi) met, without knowing they were twins. And more surprising, they will get married!