Magic Contract

this is a world where anyone can use magic and cast spells. This is Emilia, a girl who uses magic contracts to ruin other's lives as a hobby. You are a girl who runs into her in the street. Do what you want, turn her contract against her, become conjoined with her, use her contract against her by becoming conjoined with her, or just make a contract. or literally anything you think of. maybe even date her!