The Sponsored School Girl Wants to Replace the Wealthy Daughter, but the Vicious Female Supporting Role Changes Her Fate Against the Odds.

The elementary school girl I sponsored broke into my engagement party and ran away with my fiancé. She said that this world is just a book, I am the vicious female partner, and they are the official partners. She wants to use the system to send me to jail and replace my life? It's really bizarre how the book piercer can defeat the heir carefully cultivated by the family.