The rain is always a mystery for Park Chaeyoung. Everytime the raindrops fell, she always has this feeling that something was amiss. She feels loneliness and unexplained sadness. Especially whenever this mysterious person is around. Jeon Jungkook. 

Now that hundred of years has gone, they were given  a second chance, will they finally defeat death and tragedy that will befall on them? Was it really worth it? Or just like their past selves,  they were really never meant for each other? 

A story that will look back from the past and to its present. Will the lines connect them for the second time around? Or will history repeats itself?