(English) Sim Boyoung, born in Seoul, studied design. Ever since she stumbled onto the charm of picture books, she has worked as an illustrator, finding and creating images in books. She illustrated Inside the Pencil Case in the Dead of Night, The Weight of Secrets, and many more books. She is also an author, and is the writer of books including Bzzz! Honey Drugstore series and Hot, Hot Mr. Dumpling.