One of the main characters of the "Viper GTS" hentai series. Carrera is a voluptuous, hypersexual succubus best known for her love of sex, but also the quality and abundance of the souls she captures, when she doesn't even try, something that leads to an enmity between her and Mercedes.
When a virgin loner named Ogawa summons her from hell, Carrera offers him one wish. Choosing that he wants sex with Carrera instead of something like money and power, she earns the right to his soul. Carrera's hyperactive libido is too much for Ogawa, becoming so tired that Carrera can't take his soul. Having never failed to take a soul, she is surprised to find out there is a punishment for failure. She is sentenced to five days of magically-chained imprisonment, in which Rati and Mercedes decide to use her vulnerability to have sex with her.
After being released Ogawa summons her once again, having fallen in love with her, unfortunately she is captured by angels who also succeed in getting Rati and have sex with both of them. Ogawa teams up with Mercedes and Alphina to save Carrera and Rati. After succeeding in taking them back, Carrera, Rati and Mercedes decide to live with Ogawa.