The story of a man who wants to die and a woman who needs to die. 지치고 힘들었을 당신에게 "오늘도 고생 많았어요." To you who must have been tired and had a hard time, "Great Effort Today"

Hee-cheol runs a YouTube radio channel. One day, a single letter arrived, and it tells the warm and beautiful love story of two young men and women, As he read the story every week, curiosity and incomprehensible meaningful words about the main character in the letter gradually penetrate Hee-cheol's heart, and finally Hee-cheol remembers his memories of the past.