"Introduction of the work"

Our heroine! After realizing that her beloved life has become a mess at the end of her favorite novel, she becomes a keyboard warrior in the corner of her room, sending a threatening(?) letter to the author, demanding a change in the ending! "Then you change it." Just as she's about to feel bad about the informal email, she suddenly feels sleepy and opens her eyes the next day! "Where am I?" She cautiously gets up and looks in the mirror, and the realization dawns on her... That's right!! T