Jae-jun delivers letters to heaven from those who can't get over the loss of their loved ones. One day Ha-na, who writes to her late boyfriend, discovers Jae-jun's secret identity. He offers her a part-time job assisting him, and they set off on a 14-day journey.

A rebellious high school student sees his life take a strange turn when he goes to the grocery store and someone leaves a baby in his shopping cart, along with a note claiming he's the father.