Marume is a girl with average height and weight. She has short white hair and her eyes are black.
She is a talkative person. She is also somewhat playful.
She was saved by the Crow Head, and was given a mask of crow that resembling to Azuma's. She began to adore him and became his fan.
Technology Manipulation: She has the ability of technology manipulation, also known as technopathy. This power allows her to manipulate any technology, such as machines, computers, mobile phones, and other devices.