Alexandra Sabrine Fuentes Alejo belongs to a family with great wealth and power. Her parents kept her away for almost thirteen years to protect her from the grudges of people who despise them because of the wrong doings of her own father. Her father, Amerrido Rafael Alvantin Alejo was then a member of a syndicate called the "Viper". When her father wants out of the syndicate, his plan was to destroy the Viper from the inside by conspiring with secret agents who are after the syndicate. When the Viper learned about her father's betrayal it led to the death of both of her parents. With vengeance in her heart she decided to join Golden Cartier Circle Agency, an espionage organization.