Carmela Largo is the daughter of Rotti Largo and the sister of Luigi and Pavi Largo. She changed her name from Largo to Amber Sweet, what uses to be her pseudonym as a singer. She has an addiction to the designer drug Zydrate, which she buys on the black market. She is addicted to most forms of surgery, especially facial aspects. She once lost her face live on stage while singing "Blame Not my Cheeks" In GeneCo's Genetic Opera. In public, she often appears flanked by her two Eunuch guards.
She is currently the head of GeneCo. Which is revealed at the end of the movie after the death of her father. To show GeneCo had changed she auctioned her face that feel off when she was on stage to a charity.