Song Hye Kyo:

A 30's woman liner that always in love with the wrong guys. A clingy, weak typical kind of woman. But always understanding and giving away to her dongsaengs. Until, he comes..

Jung Ji-hoon:

A long time boyfriend with Hyekyo. 8 years with her but still, he hasn't found a love that he needs. Though he cares a lot for her and promise to protect her from anything. Even from his parents that denied their relationship from the beginning. Until, she comes..