Jung SaeHee (You) is a helpful, nice and natural beautiful girl.She decides to go to Busan to rest, It was the place she left to study in Seoul, but also the place where she met her first love,boyfriend:L.Joe and her childhood friend:MyungSoo. During high school, she started to date L.Joe but they broke up. Kim MyungSoo actually had a crush on SaeHee, but after one event, he became cold, and started to date anyone.

•What will happen if these three friends meet ? What will happen if L.Joe wants to date SaeHee again? What if MyungSoo's feelings for SaeHee come back ? Moreover, how will they react if they discover that SaeHee is sick and probably has only one week or less to live?