Song Yoo-jin, a young woman who finds herself at a crossroads between a bad past and the aftermath of a life-changing accident in the present.  The fate of the accident is related to Park Min-ho, a man who is burdened with guilt that haunts him, Min-ho feels that he is the cause of their past accident together.  As they navigate their intertwined destinies, they discover the transformative power of forgiveness and the possibility of deep, genuine love.