I live by the principles of humility and steadfastness!

One day, as I was preparing for elementary school entrance exams, I realized that this world was from the shoujo manga "You Are My Dolce" that I had loved reading in my previous life, and that I had become one of the characters in it. The role assigned to me was Yoshouin Reika—a typical villainous young lady who bullies the commoner protagonist, and who comes between the protagonist and the so-called "Emperor," a wealthy heir whom the protagonist falls in love with. At the end of the story, Reika is retaliated against by the Emperor and her entire family is ruined. The villain disappears, and the protagonist and the Emperor overcome their hardships and end up together. And they all lived happily ever after. But that's a problem for me! The manga can end there, but I have a life after my downfall to worry about! The protagonist and the Emperor can go ahead and make all the noise they want about love and romance. I'm making myself disappear so as not to incur the Emperor's wrath. What? The story isn't progressing well because there's no villain? But I'm busy saving money and studying in preparation for my downfall. I don't want to get involved with the Emperor at all to avoid ruin as much as possible. If they're a fated couple, they can build up their relationship on their own without any obstacles. In my previous life, I was dirt poor. In this life, I'm a villainous young lady from a wealthy family. I can't forget the taste of junk food, so I secretly sneak out of the house to buy potato chips.