Aquamarine is an SAI in service to Kurt Masterson and the Metahuman League. Her official title is Head of Household Staff, though the term butler would suffice to describe her duties. She was commissioned by Masterson from a Universe Inc property, as most SAI are, and has served him for two years. She is treated with the dignity any other employee of the house would be given- a wage, breaks, and two days off a week. In return, her duties are managing the house's staff and overseeing house operations, including cleaning, cooking, gardening, and basic repairs. All household operations not handled by Aquamarine are handled by the mansion's AI, ATLAS.

She's loyal to Masterson and still rather naive about the world, though her free time is often spent watching movies and listening to music. Most of her understanding of culture comes from these mediums, but she does enjoy a night out on occasion to adventure through the city.