I never thought I would be a character in a book, going through hardships and completing those tasks. I know the fate of each task in the book, but what about my own fate. It tells the story of how Qin Ruyu follows the plot, upgrades and fights monsters all the way. From a young transparent person, she completes the protagonist's plot tasks, enters the book, and eventually becomes a character in the book.
Concept: You may be a supporting character in other people's stories, but you are still the protagonist in your own story.