You isekai'd into a historical world and became the Villainess of the story. To win and go back to the modern world, you must get Prince Aiden Emreis (the guy with blonde hair) to 100 favorability (how much the character likes you.) Aiden's favorability will increase if you do something he likes and will decrease if you do something he doesn't like. Aiden's lover is Cheryl, so steal him from her!