Jaejoon, isn't your ordinary postman, he delivers letters to Heaven from those missing their loved ones.
The story of a messenger that has the ability to travel between the present and the afterlife. Shin Jae Joon was involved in an accident that put him in a coma and gave his spirit the ability to travel back and forth between the real world and heaven. He becomes a postman who delivers letters to the dead from their grieving loved ones and meets Jo Ha Na by chance as she is trying to send her late boyfriend a letter. Ha Na, however, is the only person who can see Jae Joon.
