A story about a couple who really love each other so much was separated by a devil-like woman. The woman didn't do anything much to make the girl jealous. But, because of her jealousy, Jonghyun turns to be her victim. The girl, who cannot bear of what she've done, she doesn't wanna let the guy saw her face again coz she know, she was useless. She wasn't a good girlfriend. So she decided to go overseas to continue her study and in the same time, take some rest and forget HIM. One day, she met a guy when she were on a practical assignment. She felt like the guy was the only people who understand her. She felt so comfortable with him. One day, the guy tell her about his feeling towards her. She can't say no but she can't say yes too. She'd tried and tried to find out why she couldn't accept him and why she reject him. She was so confused. One day, she met her ex-boyfriend at a shopping complex. With a woman. She knew her. Suddenly, she felt so broken deep in her heart. Things just got worser day by day. The guy she met and his ex-boyfriend were scrambling because of her. She just got confused and confused. Doesn't know what to do, she decided to kill herself. How will this triangle love ends up ? Is it Jonghyun or Yoseop who will own Eunji ? The main question is, is Eunji's safe ?