Chachamaru Karakuri is a two-year-old robot created by Satomi Hakase to serve Evangeline and protect her during time where the spell binding her weakens her. She is initially without any real emotions, but after spending time around Negi, she begins to have feelings for him, and show emotions. She spends most of her free time helping people and rescuing stray animals. She strongly fears the idea that she is nothing more than a soulless doll and that she does not have a soul.
She is skilled in hand to hand combat, and she is equipped with rocket fists, laser emitters, magic-powered thrusters that can allow her to fly for fifteen minutes, and a tool to undo binding circles. Her body has been upgraded several times, and she is later given a completely new body that looks completely human, unlike her original body's easily detectable parts; she even has a chibi body designed to disguise herself. The upgrade also allows her to transform her arms into swords and guns.
She likes having people wind her up and serving tea
