Constance was once summoned by a master thief to be his familiar and sidekick. As a magic-based calligrapher drake, the was able to get into places her master could not, and help him in. They made a living stealing and swindling together, becoming a notorious duo.

One day, when Constance was raiding a tomb, an old artifact infected her with a symbiotic creature that burrowed inside her. It gave her strength and new abilities, as well as a great fright. It took her a while to get used to the things she shared her body with now.

Along with giving her new strength and powers, the symbiotes also extended her lifespan. Because of them, she managed to outlive her master. His final wish was for her ownership to be given to the Covenant. From then on, Constance now serves the eldritch entity and travels with them on their adventures.