Its just another afternoon in Baekhyun's life, when there is a accident which occurs in front of him. He is unhurt but emotionally scarred. Haunted by the accident for many days. One day while wandering near the accident site, he finds a halfburnt dairy, maybe written by someone who died in on that fateful day. The burnt dairy entrusts Baekhyun with a strange responsibility - the last words of maybe the dead man. Chanyeol, his best buddy since school, and Yoonmi his girlfriend, unknowingly join him on this road trip. Where will the dairy take them? And how would it affect their lives?