Violet

• Robot created by government facility Before demons took it over
• Was made to look small and child-like to do secret spying
• Was never completed, did not have legs
• living with Mistress, learning how to build legs

Violet was a prototype surveillance robot, but her design was never finished and her project was scrapped, leading to her being discarded and forgot about deep in the basement of the facility. Her body was never finished, and she had to make the rest of the parts herself, leaving her having to crawl along the floor for a lack of legs.
One day, Mistress was also thrown into the basement, and Violet began to repair her. Now the two fix each other endlessly until they will eventually run out of parts.