Park Yoon Hee(Jiyeon) and Lee Sung Jo(JB) were bestfriends since they were still young.Sung Jo has a secret crush on Yoon Hee..Yoon Hee was very modest and kind who is the opposite of her twin sister Eun Hee who exactly look like her..Eun Hee is a very smart girl just like her sister.Unlike her sister,she is very cheerful and not that kind as her sister.She has feelings for Sung Jo too,whom she always sees in her dreams.But she started to envy her sister when she founds out that Sung Jo was close with Yoon Hee..

Sung Jo is from a rich family with a large rice plantation where Yoon Hee and Eun Hee's parents were working at..He left the province to continue his studies on Seoul.

After 9 years,Yoon Hee's parents can't send them both to Seoul because of lack of money.That's why Yoon Hee gave up her studies to help her parents who are working so they can send Eun Hee(pronounced as Un Hi) at university..

There Eun Hee met Sung Jo at the university who was in the same course as hers..Sung Jo mistaken her as Yoon Hee since he doesn't know that she has a twin sister.Since Eun Hee likes Sung Jo too,she pretends to be Yoon Hee so she can stay near at Sung Jo.

What wil happen when Sung Jo founds out that she is not the real Yoon Hee??