Seulgi had been accustomed to being ignored by all, but Joohyun treats her as if she puts the stars and moon to shame.
Or, in other words, Joohyun lusts for Seulgi while Seulgi is too oblivious to tell.
Everyone has their story but somehow, halfway through their own, two girls unknowingly begin to write on the same page, creating a new book they both wish to have a happy ending.