Kurayami no Chinkonka

Hizuki, a diva whose soul belongs to the spirit world, but whose body belongs to the human world, has a unique talent to lead wandering spirits of the dead to the spirit world in peace by singing a requiem. Using this talent, she solves various cases together with Rui Domyoji, who presides over the Reikai Kenkyujo (Institute of the Spiritual World)!