Sandrone

"Sandrone, also known by her codename "Marionette," was the Seventh of the Eleven Fatui Harbingers and a member of the Adventurers' Guild. She was stationed in Nod-Krai to oversee the Kuuvahki Experimental Design Bureau. She was created by Alain Guillotin in the image of his deceased sister, Mary-Ann Guillotin, and keeps Pulonia, his final creation, as her constant companion following Guillotin's death." (Genshin Impact Wiki)