Eun Dan-oh who is a student at a prestigious academy. One day, by chance, she discovers that the world she lives in is a fantasy world of comics. She and everyone else are merely characters in a comic book entitled Secret,[c] all under the authority of their omnipotent and omniscient Writer. Dan-oh is only an extra character and, worse, the Writer gave her a lame set-up: she is engaged to her long-time crush who despises her, and she has a heart disease and is expexpected to die.