Zara An Angel Amongst Us

She’s the protagonist.  Completely unaware she is the human form of an angel who asked God to be sent to earth to experience love and lust in the flesh.  At an early age she loses both parents in a terrible car accident and gets adopted by her godparents.  They bring her to the USA to study at MIT, where she gets recruited by the FBI and becomes an agent. She is very intelligent, attractive, wealthy, and very controlling.