Ajak is a member of the Eternals, a genetically superior offshoot race of humanity who possess abilities such as levitation and immortality. She lived much of her life away from most of the rest of the Eternals, choosing instead to live with a select few of her species in the city of Polaria. Ajak dedicated much of her life to learning how to communicate with the epic beings who created her species, the Celestials, in their native tongue.