Choi Jeongsun (F) is an author and editor of picture books. After seeing the flower paintings of Baek Jeehye in an exbition visited by chance, she got an insight on a "picture book featuring the characteristic colors of Korea," and began to plan Flower, Blossomed. With their new-found relationship, the two began planning this book as well. The story of this book is a modern interpretation of the traditional Korean children's song, "Hide and Seek." Choi also wrote many other picture books including Guess Who?, Hug Hug and The Book Washing Its Hair.