How to Break up When You Find Out That You Are a Supporting Actress

Claire Lanster-von-Augusta, the daughter of the Duke of Gloria Empire, the goddaughter of the emperor, the best friend of the imperial princess, and a genius magical girl, one day, she discovered that she was a supporting character in a book! ? She is also the kind of supporting actress who is destined to be a stepping stone for the protagonist! ? In order to tamper with the plot and change destiny, Claire and her partners embarked on a thrilling adventure