Yun Seul-bit was born and raised on the small island of Goheung, which has the nickname “an open-air art museum” with artworks everywhere. She started her career as a writer for quarterly magazine Children and Literature. She has written and published Today’s Sunshine and Crossroads. The latter received the Grand Prize in the short story category of the Woongjin Junior Literature Awards and was a finalist for the children’s and youth book of the year of the Korea Publishing Culture Awards. She has also published the short story collection Metaphor of Plan B.​