Iron Ghost no Shoujou

Iron Ghost no Shoujou (アイアン・ゴーストの少女, lit. "Iron Ghost Girl") is a manga series written and illustrated by Rei Mikamoto. It is serialized in Comic Beam.

Plot
In a world where transgressive rituals transfer dead souls into "puppets" are spread, a high school girl named Mio Amasato does the same as she controls a bizarre mechanical doll in her battle with cultists and murderers.