After Passing Through the Book, I Became Bai Yueguang, the Male Protagonist Who Died Early

[Double birth + double ending + second male lead] Li Mingyue traveled through the books and became the eldest princess with the same name and surname in the original work. If she remembered correctly, did this eldest princess only live in the introduction? She was completed in the first paragraph and became the eternal Bai Yueguang in the heart of the male protagonist in the book, so that every subsequent concubine of his has the shadow of her, which shows how lethal Bai Yueguang is. Is it a typical stand-in literature, or a male subtitles novel? Li Mingyue, who has been involved in various innocent romance fields for many years, didn't even have the interest to open the first chapter, so she clicked "not interested". If she had known that she would be in a book after a sleep, she would have recited the entire text and analyzed the details of the characters and the storyline one by one. But now, her mind was blank, and all she could remember was the passage about how she was about to burp at the banquet. No matter what, it was more important to save her life first.