The Unexplained Breakup

Love was all Hyeonji had as a jobseeker, but her newly employed boyfriend Junhyun dumped her, and she even got into an accident. Just when she feels her love and life is all over, she wakes up 3 months ago, on the morning of her and Junhyun's 6th anniversary. With this blessing she tries to make Junhyun stay, only to find out his affair. Knowing the events to occur, she now plots revenge.