Dooya was an assassin sent from the Northern Tribes. She was killed by Kurome and her dead body was turned into a puppet under Kurome's command. As mentioned by Kurome, she was a confident and cheerful person and she still exhibits her confidence even as a corpse puppet.

She wields two hand guns. She is shown to be an expert marksman even was able to overwhelm Mine, a self-titled "genius marksman," for a while. Because of her state as a resurrected puppet, she does not feel pain or fatigue, enabling her to fight stronger opponents such as Teigu users without possessing a Teigu herself.