The president and owner of the ghost sweeping business Mikami GS. Reiko has long red hair, green eyes, and usually wears a short purple strapless dress. She was initially trained by a priest of the Roman Catholic Church in the art of exorcism but unlike her mentor, she was not satisfied with a life of poverty. Although she is wealthy from the success of her exorcism business, she is stingy when it comes to paying her employees, and often gouges her clients for a higher fee.
She uses a lightsaber-like spiritual weapon, various exorcism charms and martial arts when dealing with supernatural pests and entities. She apparently inherited her mother's ability to time skip.