Among the millions of firms in Japan, just one is officially listed as a 'Ghost Corporation.' While they earn barely enough to keep the lights on, Yuugen Co. stands as Tokyo"s sole shield against vampires, curses, and every type of specter. Under the capable yet audacious leadership of Ayaka Kisaragi, Yuugen Co. accepts any assignment to sustain its operations another day and the restless shadows that roam.