"Anval Mk.2" model Shinki. who has stated that she has been with her master the longest probably refuting to the events of the human sized shinki android when she first met him. It is unknown if she is the only Mk.2 shinki of her kind but in the anime there is a scene where you see multiple identical lookalikes of her. The only other Mk.2 shinki that is know is Strarf.