After traveling through time, I was in the front row watching the real daughter slap her face

Le Wan travels through the book and becomes a victim of the battle between the real and fake rich daughters. As the cousin of the real rich daughter, she has a good family background and outstanding looks. She is doted on by her family and her fiancé. She is undoubtedly doted on by the whole group, the princess, and a blessing from heaven... If she hadn't destroyed herself, she could have won a great victory. But the problem is that her fiancé is the hero! A philandering scumbag, after the heroine appears, he insists that he is loyal to the heroine. The original self, who has been doted on since childhood, cannot accept being abandoned. She harasses the heroine endlessly, turning herself into cannon fodder and bringing trouble to the whole family. But now Le Wan has her own life. She would rather be spoiled by her family and live happily with them...