Jiang Liyan unexpectedly finds herself inside a book, and can only return to her original world once the progress bar is full. She decides to change the original protagonist's fate, carefully teaching her disciple and striving to atone for the protagonist's crimes. As time passes, she gradually realizes that she seems to have become part of this world, and has developed feelings for it. She uses herself to seal the passage to the demon realm, so people no longer have to live in fear. Her death brings the war between the human, demon, and monster realms to an end. But she never regrets it.
